Developer Tools
Handy browser-based utilities I'm building — no install, no sign-up, just paste and go.
JSON Formatter & Validator
Format, validate, and minify JSON data with syntax highlighting and error detection.
Regex Tester
Test regular expressions with live matching, capture groups, and common pattern library.
Base64 Encoder / Decoder
Encode and decode Base64 strings instantly with support for text and file input.
URL Encoder / Decoder
Encode and decode URL components and full URLs with RFC 3986 compliance.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text input.
UUID Generator
Generate RFC 4122 v4 (random) and v7 (timestamp-sorted) UUIDs in bulk.
JWT Decoder
Decode JSON Web Tokens to inspect header, payload, and expiration status.
Color Converter
Convert colours between HEX, RGB, and HSL formats with live preview.
Timestamp Converter
Convert between Unix timestamps and ISO 8601 dates with relative time display.
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, or words.
Markdown Preview
Write Markdown and see rendered HTML in a live side-by-side preview.
HTML Entity Encoder / Decoder
Encode and decode HTML entities with a built-in reference table.
Diff Checker
Compare two texts side by side with colour-coded additions, removals, and statistics.
String Case Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, and 6 more formats instantly.
Text Counter
Count characters, words, sentences, paragraphs, lines, and estimate reading and speaking time.
Slug Generator
Generate URL-safe slugs from any text with customizable separator, length, and diacritic transliteration.
Text Sorter
Sort lines alphabetically, numerically, by length, or randomly — with deduplication and blank-line removal.
String Escaper
Escape and unescape strings for JSON, JavaScript, HTML, RegExp, CSV, SQL, and XML formats.
Text Reverser
Reverse entire text, individual word characters, line order, or word order within each line.
Whitespace Cleaner
Trim, normalize, and remove excess whitespace — tabs to spaces, collapse runs, strip blank lines.
Number to Words
Convert numbers to their written-out word equivalents in English and German, cardinal or ordinal.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal with simultaneous multi-base output.
ASCII / Unicode Table
Browse the full ASCII and Unicode character table with code points, HTML entities, and category filters.
Morse Code Translator
Translate text to Morse code and back with optional audio playback.
ROT13 / Caesar Cipher
Encode and decode text with ROT13, ROT47, Caesar shift, and Atbash ciphers.
QR Code Generator
Generate styled QR codes with custom colors, dot shapes, gradients, and logo. Download as PNG or SVG.
Punycode Encoder / Decoder
Encode international domain names to Punycode (ACE) and decode ACE labels back to Unicode.
URI Parser
Decompose any URI into protocol, host, port, path, query parameters, and fragment.
JSON ↔ YAML Converter
Convert between JSON and YAML formats instantly with syntax validation and pretty-printing.
JSON ↔ CSV Converter
Convert JSON arrays to CSV spreadsheets and parse CSV back to JSON with configurable delimiters.
JSON ↔ XML Converter
Convert JSON objects to XML and XML documents back to JSON with attribute and namespace handling.
CSV Viewer
Paste CSV data and view it as a sortable, filterable table with column detection.
XML Formatter
Prettify or minify XML documents with configurable indentation and syntax validation.
JSONPath Evaluator
Evaluate JSONPath expressions against any JSON document and inspect the matched results.
JSON Schema Validator
Validate JSON data against a JSON Schema (draft-07) and get detailed error messages.
JSON to TypeScript Types
Generate TypeScript interfaces and type definitions from any JSON object or array.
Password Generator
Generate cryptographically-secure passwords with configurable length, character sets, and bulk generation.
Password Strength Checker
Analyse password entropy, crack-time estimates, and character diversity with detailed feedback.
HMAC Generator
Generate HMAC message authentication codes using SHA-256, SHA-384, or SHA-512 with any secret key.
AES Cipher
Encrypt and decrypt text with AES-GCM, AES-CBC, or AES-CTR using a base64-encoded key
TOTP / 2FA Generator
Generate time-based one-time passwords (TOTP / RFC 6238) for two-factor authentication testing.
CSP Header Builder
Build Content Security Policy headers interactively with directive explanations and copy-ready output.
SSL Certificate Decoder
Decode PEM certificates to inspect subject, issuer, validity dates, and extensions.
Cron Expression Parser
Parse cron expressions, see the next execution times, and generate expressions from natural language.
Regex Pattern Library
Browse a curated library of common regular expression patterns organised by category.
HTTP Status Codes
Browse all HTTP status codes with meaning, RFC reference, and usage guidance.
MIME Type Lookup
Look up MIME types by file extension or search by content-type string.
User-Agent Parser
Parse User-Agent strings to identify browser, OS, device type, and engine.
IP / CIDR Calculator
Calculate subnet masks, network addresses, broadcast addresses, and host ranges from CIDR notation.
chmod Calculator
Calculate Unix file permission octals interactively with read/write/execute toggles for owner, group, and others.
Git Command Reference
Browse and search a curated reference of Git commands with descriptions, flags, and usage examples.
SQL Formatter
Format and prettify SQL queries with configurable indentation and dialect support.
CSS Minifier
Minify CSS stylesheets by removing whitespace, comments, and redundant code.
JavaScript Minifier
Minify JavaScript by removing whitespace and comments for reduced file size.
HTML Formatter
Prettify or minify HTML documents with configurable indentation.
SVG Optimizer
Optimise SVG files by removing metadata, comments, and redundant attributes.
Code Screenshot
Turn code snippets into beautiful screenshots with syntax highlighting and customizable themes.
Fake Data Generator
Generate realistic mock data for testing: names, emails, addresses, and more.
Random Number Generator
Generate cryptographically-secure random numbers, ranges, and sequences.
Color Palette Generator
Generate harmonious color palettes from a base color using complementary, triadic, and analogous schemes.
CSS Gradient Builder
Build and preview CSS linear and radial gradients with a visual editor.
Box Shadow Generator
Create CSS box-shadow declarations visually with live preview.
Border Radius Generator
Craft custom CSS border-radius shapes with an interactive visual editor.
Unit Converter
Convert between length, weight, temperature, area, and digital storage units.
Crypto Unit Converter
Convert between BTC, satoshi, mBTC, wei, gwei, and ether with BigInt precision.
Crypto Address Validator
Validate Bitcoin (Legacy, SegWit, Taproot), Ethereum (EIP-55), and Solana addresses.
BIP39 Mnemonic Tool
Generate and validate BIP39 mnemonic seed phrases (12–24 words) using your browser’s secure RNG.
Merkle Tree Builder
Build and visualise a SHA-256 Merkle hash tree from input leaf values.
EVM Function Selector
Compute Keccak-256 function selectors and event topic hashes from Solidity signatures.
Blockchain Explorer Links
Generate explorer URLs for transactions, addresses, and blocks across all major chains.
Docker Command Reference
Browse and build Docker CLI commands with an interactive parameter builder.
PowerShell Reference
Browse and build PowerShell cmdlets with an interactive parameter builder.
Bash Reference
Browse and build Bash commands with an interactive parameter builder.
AI Code Explainer
Paste code and get a clear, structured explanation powered by AI.
AI Regex Generator
Describe a pattern in plain language and get a working regex with explanation.
AI Commit Message
Paste a git diff and get a well-structured commit message following conventional formats.
AI SQL Generator
Describe a query in plain language and get production-ready SQL for your database.
AI Code Converter
Convert code between languages — JS, Python, C#, Go, Rust and more.
AI Test Generator
Paste a function and get comprehensive unit tests in your chosen framework.
AI Mock Data
Describe a data shape in plain English and get realistic mock JSON objects.
AI CSS Generator
Describe a UI element and get production CSS or Tailwind utility classes.
AI Code Review
Paste code and get structured review feedback with severity levels for bugs, security, and style.
AI API Docs
Paste a route handler and get OpenAPI 3.1 YAML documentation generated automatically.
AI API Spec
Describe your API in plain language and get a complete OpenAPI 3.1 YAML specification.
AI Changelog
Paste your git commit log and get a formatted Keep a Changelog entry ready to ship.
AI Cron Generator
Describe when a job should run in plain English and get the correct cron expression instantly.
AI Dockerfile
Describe your application stack and get a production-ready Dockerfile following best practices.
AI Embedding Vis
Visualize high-dimensional embeddings with t-SNE / PCA projection.
AI Error Explainer
Paste any error or stack trace and get a clear explanation with root cause analysis and fix steps.
AI GitHub Actions
Describe your CI/CD workflow and get a complete GitHub Actions YAML ready to commit.
AI README Generator
Describe your project and get a complete, professional README.md ready to push to GitHub.
AI Shell Command
Describe what you want to do and get the correct shell command with a step-by-step breakdown.
Exit Code Reference
Look up POSIX, curl, Node.js, and Docker exit codes with descriptions and common causes.
Linux Signal Reference
Browse POSIX signals with numbers, default actions, catchability, and practical examples.
DNS Record Reference
Browse all DNS record types with syntax, examples, and RFC references.
Port Number Reference
Browse well-known TCP/UDP ports with protocols, services, and security notes.
HTTP Header Reference
Browse all HTTP request, response, security, CORS, and caching headers with usage guidance.
Environment Variable Reference
Browse common environment variables for POSIX, Windows, Node.js, Python, Docker, and CI/CD.
kubectl Command Reference
Browse kubectl commands with flags, examples, and tips for Kubernetes cluster management.
YAML Reference
Browse YAML syntax with live parsed-value previews, gotchas, and encoding patterns.
SQL Reference
Browse SQL keywords with syntax, examples, and dialect notes for PostgreSQL, MySQL, and SQLite.
Unicode Explorer
Identify Unicode codepoints, encoding formats, and browse characters by category.
Markdown Reference
Browse Markdown syntax with side-by-side rendered previews and GFM extensions.
.gitignore Reference
Browse .gitignore syntax patterns and copy pre-built templates for popular languages and tools.
nginx Reference
Browse nginx directives with syntax, defaults, context badges, and configuration examples.
OpenAPI / Swagger Viewer
Paste or upload an OpenAPI 3.x / Swagger 2.0 spec and browse endpoints, schemas, and parameters in a readable UI.
GraphQL Formatter
Format and validate GraphQL queries, mutations, and schema definitions with syntax highlighting.
JWT Generator
Generate JSON Web Tokens with custom claims, algorithm selection (HS256/RS256), and configurable expiry.
CORS Policy Tester
Build and test Cross-Origin Resource Sharing (CORS) headers, origins, and preflight responses.
JSON Diff / Patch
Compare two JSON documents and view added, removed, and changed fields. Generate RFC 6902 JSON Patch output.
curl Command Converter
Convert curl commands to JavaScript fetch, axios, PowerShell Invoke-RestMethod, and Python requests.
HTTP Methods Reference
Complete reference for HTTP methods: semantics, idempotency, safety, request body support, and common use cases.
OAuth 2.0 Flow Debugger
Visualise OAuth 2.0 grant flows (authorization code, client credentials, implicit, PKCE) and decode access tokens.
TOML Formatter
Format and validate TOML configuration files. Normalises key spacing, section structure, and blank lines.
INI ⇔ JSON Converter
Convert between INI configuration files and JSON objects bidirectionally.
Email Address Validator
Validate email address syntax against RFC 5321 / RFC 5322 rules. Shows local part, domain, and specific issues.
IBAN Validator
Validate IBAN codes. Verifies MOD-97 checksum, format, and country-specific length rules.
Phone Number Formatter
Format phone numbers into E.164, international, and national formats. Detects country from the dialling code.
Semver Range Calculator
Check if a version satisfies a semver range and calculate the next major, minor, or patch bump.
JSON-LD / Schema.org Editor
Format and inspect JSON-LD documents. Extracts @context, @type, and linked data properties.
HCL (Terraform) Formatter
Format HashiCorp Configuration Language (HCL) files used by Terraform, Consul, and Vault.
Contrast Checker
Check WCAG colour contrast ratios between foreground and background colours.
Colour Blind Simulator
Simulate how a colour appears to people with deuteranopia, protanopia, or tritanopia.
ARIA Role Reference
Browse all WAI-ARIA 1.2 roles with required and allowed attributes.
Timezone Converter
Convert a date and time between any two IANA timezones instantly.
Date Calculator
Add or subtract days/weeks/months/years from a date, or find the difference between two dates.
Working Days Calculator
Count working days between two dates, excluding weekends and optional public holidays.
Epoch Batch Converter
Convert multiple Unix timestamps to human-readable dates in one paste.
TZ Abbreviation Reference
Look up timezone abbreviations (EST, CET, JST…) and find their IANA equivalents.
Flexbox Playground
Visually build CSS flexbox layouts and copy the generated CSS.
CSS Grid Playground
Interactively configure CSS Grid layouts and export the generated CSS.
CSS Animation Builder
Build CSS @keyframe animations visually and copy the generated code.
Tailwind ↔ CSS Converter
Convert Tailwind utility classes to plain CSS and back.
Spacing Scale Generator
Generate and preview CSS spacing scales based on Tailwind, 8px grid, golden ratio, or custom multiplier.
Glassmorphism Generator
Design glassmorphism card effects with live preview and copy the generated CSS.
Favicon Generator
Create text or emoji favicons in multiple sizes using the Canvas API, then copy as PNG data URLs.
Placeholder Image Generator
Generate SVG placeholder images in any size and colour for use during development.
Terraform Reference
Blocks, meta-arguments, built-in functions and expressions for Terraform HCL.
GitHub Actions Reference
Triggers, job fields, step fields, contexts, and expressions for GitHub Actions workflows.
Helm Chart Reference
Template variables, functions, directives, and lifecycle hooks for Helm chart development.
Dockerfile Reference
All Dockerfile instructions with syntax, descriptions, and best-practice examples.
Docker Compose Reference
Service, network, volume, and deploy fields for Docker Compose file authoring.
systemd Reference
Unit file directives for [Unit], [Service], [Install], [Timer], and [Socket] sections.
Makefile Reference
Rules, variables, functions, directives, and automatic variables for GNU Make.
CI Environment Variables
Predefined environment variables for GitHub Actions, GitLab CI, Jenkins, Azure Pipelines, and CircleCI.
SSH Key Generator
Generate ECDSA or RSA SSH key pairs in your browser — keys never leave your device.
Self-Signed Certificate
Generate a self-signed X.509 certificate and private key entirely in your browser.
DKIM Key Generator
Generate a DKIM RSA key pair and DNS TXT record for email authentication.
OWASP Security Headers
Generate security response headers following OWASP best practices for your web application.
SRI Hash Generator
Generate Subresource Integrity hashes for external scripts and stylesheets.
Robots.txt Generator
Generate a robots.txt file to control crawler access to your website.
.htaccess Generator
Generate Apache .htaccess rules for redirects, caching, security headers, and more.
PGP Key Viewer
Parse and inspect PGP/GPG public key blocks to view key metadata.
TypeScript Reference
Searchable reference for TypeScript types, utility types, generics, and type constructs.
CSS Selectors Reference
Searchable reference for CSS selectors, combinators, pseudo-classes, and pseudo-elements.
React Hooks Reference
Searchable reference for all React hooks including state, effects, context, and React 19 hooks.
Python Built-ins Reference
Searchable reference for Python built-in functions, type conversions, iteration tools, and I/O.
C# Reference
Searchable reference for C# types, collections, LINQ, async/await, string methods, and exceptions.
REST API Reference
Searchable reference for HTTP methods, status codes, design principles, and common headers.
HTML Elements Reference
Searchable reference for HTML elements with attributes, semantics, and usage examples.
Regex Syntax Reference
Searchable reference for regex patterns including character classes, quantifiers, anchors, groups, and lookaround.
Gzip Estimator
Estimate gzip compression size and ratio for any text or code.
Hex Editor
View file and text contents as a formatted hex dump.
Image to Base64
Convert images to Base64 encoded data URIs for embedding in HTML or CSS.
Data URI Generator
Convert any file to a Base64 data URI ready for embedding.
Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
Byte Calculator
Convert between byte units — B, KB, MB, GB, TB, KiB, MiB, GiB, TiB.
Image Resizer
Resize images in the browser using the Canvas API. No upload required.
ICO / Favicon Generator
Generate multi-size favicon PNG sets (16×16, 32×32, 48×48, 64×64, 128×128) from any image.
Workflow Builder
Chain tool operations into automated text-processing pipelines
RSA Cipher
Encrypt and decrypt data with RSA-OAEP using Web Crypto API
ChaCha20-Poly1305
Authenticated encryption and decryption with ChaCha20-Poly1305 (RFC 8439)
Digital Signatures
Sign and verify messages with Ed25519, ECDSA, and RSA-PSS
File Encryptor
Encrypt and decrypt files with AES-256-GCM and PBKDF2 key derivation — entirely in your browser
PGP Cipher
Generate RSA key pairs, encrypt and decrypt messages with PGP-style hybrid encryption
ECDH Key Exchange
Demonstrate Elliptic-Curve Diffie–Hellman key agreement with NIST curves and HKDF key derivation
Key Derivation
Derive cryptographic keys from passwords using PBKDF2, HKDF, and Scrypt
Triple DES (3DES)
Encrypt and decrypt data using DES, 3DES-EDE2, and 3DES-EDE3 block ciphers
Blowfish Cipher
Encrypt and decrypt data using the Blowfish symmetric block cipher with variable-length keys
Envelope Encryption
Encrypt data with a random DEK, then wrap the DEK with a KEK — the industry-standard pattern used by AWS KMS, GCP CMEK, and Azure Key Vault.
Caesar & Vigenère Cipher
Encrypt and decrypt text with classical substitution ciphers — Caesar, Vigenère, ROT13, Atbash, and Affine — with brute-force and frequency analysis.
XOR Cipher
XOR encrypt/decrypt data with repeating keys, analyse single-byte XOR ciphertexts, and detect key lengths via Hamming distance.
One-Time Pad
Encrypt and decrypt messages using the only mathematically unbreakable cipher — the One-Time Pad (Vernam cipher).
Enigma Machine
Simulate the historic Wehrmacht Enigma I cipher machine with authentic rotor wirings, plugboard, and double-stepping.
Steganography
Hide secret messages inside images using LSB (Least Significant Bit) encoding — invisible to the naked eye.
Emoji Picker
Search, browse, and copy 1,906 Unicode emoji — skin-tone modifiers, version filters, and five copy formats.
Neumorphism Generator
Create soft-UI neumorphic shadow effects with live preview and copy-ready CSS.
Clip-Path Generator
Build CSS clip-path shapes — polygon, circle, ellipse, and inset — with presets and a live preview.
CSS Filter Generator
Build CSS filter effects — blur, brightness, contrast, grayscale, hue-rotate, and more — with live preview and copy-ready CSS.
Aspect Ratio Calculator
Calculate and convert aspect ratios, derive missing dimensions, and output ready-to-use CSS aspect-ratio rules.
Font Pair Explorer
Browse curated heading and body font pairings using system-safe CSS font stacks — no external font downloads required.
Typography Scale
Generate a harmonious modular type scale from a base size and ratio — outputs CSS custom properties for h1–xs.
Scrollbar Styler
Design custom scrollbars with live preview — outputs both Webkit and Firefox CSS rules.
CSS Triangle Generator
Generate pure CSS border-trick triangles in eight directions with live preview and copy-ready CSS.
YAML Formatter
Format, minify, or validate YAML documents with configurable indentation and instant error feedback.
Markdown Table Generator
Build Markdown tables visually with a grid editor — set column alignment, add rows and columns, and copy the result instantly.
Python Formatter
Format Python code with configurable indentation, quote normalisation, and blank-line cleanup — no server required.
PHP Formatter
Format PHP code with configurable indentation and Allman or K&R brace style — runs entirely in your browser.
C# Formatter
Format C# code with configurable indentation and Allman or K&R brace style — runs entirely in your browser.
SQL Formatter / Minifier
Format SQL queries for readability or minify them to a single line — supports Standard SQL, MySQL, PostgreSQL, and SQLite.
JSON Flatten
Flatten nested JSON objects to dot-notation keys or unflatten them back to nested form with a custom separator.
JSON Patch Generator
Generate RFC 6902 JSON Patch documents by comparing a source and target JSON object — outputs add, remove, and replace operations.
JSON Key Sorter
Recursively sort all keys in a JSON object alphabetically in ascending or descending order.
Meta Tag Generator
Build HTML meta tags for SEO, social sharing, and viewport configuration.
Open Graph Preview
Preview how OG/Twitter cards look across platforms.
UTM Link Builder
Build campaign tracking URLs with UTM parameters for analytics attribution.
Cookie Parser
Decode and inspect browser cookie strings.
CSP Evaluator
Validate and score Content-Security-Policy headers.
License Picker
Compare open-source licenses side by side and choose the right one for your project.
Env Parser
Parse and validate .env files — detect quoted values, comments, and empty variables.
Barcode Generator
Generate barcodes in CODE128, EAN13, UPC, CODE39, ITF14, MSI, and pharmacode formats.
Regex Explainer
Paste a regex pattern and get a token-by-token, color-coded explanation.
Cron Builder
Build cron expressions visually with presets and next-run preview.
Text Diff & Merge
Three-way text diff and merge with conflict detection and color-coded output.
Nginx Config Generator
Generate nginx server blocks with SSL, reverse proxy, and location blocks.
Docker Compose Generator
Build docker-compose.yml files with service cards, ports, volumes, and environment variables.
Kubernetes Manifest Generator
Generate Kubernetes Deployment, Service, and Ingress manifests.
Firewall Rule Generator
Generate firewall rules for iptables, UFW, and nftables.
Base58 Codec
Encode and decode text or hex to Base58 using the Bitcoin alphabet.
Binary ↔ Text
Convert between binary representation and UTF-8 text with delimiter options.
Unicode Escape Converter
Convert between \uXXXX, HTML entities (&#x;), decimal entities (&#;), and literal characters.
ABI Encoder
Encode Ethereum ABI data for Solidity function calls with parameter breakdown.
HD Wallet Explorer
Explore BIP44 HD wallet derivation paths with interactive tree visualization.
JWT Inspector
Inspect JWT claims, analyze signatures, and visualize token timelines.
Java Reference
Searchable Java quick reference — collections, streams, concurrency, I/O, records, and patterns.
Go Reference
Searchable Go quick reference — goroutines, channels, error handling, generics, and standard library.
Scientific Calculator
Full-featured scientific calculator with trigonometry, logarithms, and calculation history.
Matrix Calculator
Add, subtract, multiply, transpose, and compute determinants for matrices of any size.
Statistics Calculator
Compute mean, median, mode, standard deviation, and variance from a dataset.
Percentage Calculator
Calculate percentages, percentage change, and add/subtract percentages from values.
Big Number Calculator
Perform arbitrary-precision arithmetic on integers without floating-point limitations.
Boolean Algebra
Generate truth tables for Boolean expressions with up to 4 variables.
Bitwise Calculator
Perform bitwise AND, OR, XOR, NOT, shift operations with hex, binary, and decimal views.
Unit Converter Pro
Convert between units across length, weight, temperature, area, volume, speed, time, and data.
Complex Number Calculator
Perform arithmetic on complex numbers including modulus, argument, conjugate, and powers.
Equation Solver
Solve linear, quadratic equations and 2×2 linear systems step-by-step.
Sequence Finder
Detect arithmetic, geometric, Fibonacci, square, and prime sequences from number patterns.
Prime Checker
Check primality, factorize numbers, and find all primes in a given range.
GCD / LCM Calculator
Compute GCD and LCM for multiple numbers with Euclidean algorithm step-by-step.
Roman Numeral Converter
Convert between Roman numerals and integers (I–MMMCMXCIX) bidirectionally.
Probability Calculator
Calculate basic probability, permutations, combinations, and binomial distribution.
Graph Plotter
Plot mathematical functions with an interactive SVG canvas and expression presets.
Ratio Calculator
Simplify ratios, scale by a factor, find missing values, and compare two ratios.
Hex Math
Perform arithmetic and bitwise operations on hexadecimal numbers with multi-base output.
SQL Query Builder
Build SELECT queries visually with JOINs, WHERE clauses, and multi-dialect support.
SQL vs NoSQL Comparison
Compare equivalent SQL, MongoDB, and DynamoDB queries side by side for common operations.
Schema Designer
Design database tables visually and generate CREATE TABLE SQL for multiple dialects.
Migration Generator
Compare two CREATE TABLE schemas and generate ALTER TABLE migration statements.
Connection String Builder
Build database connection strings for PostgreSQL, MySQL, MongoDB, Redis, and more.
SQL Injection Tester
Analyze user input for common SQL injection patterns to identify security vulnerabilities.
CSV to SQL
Convert CSV data to CREATE TABLE and INSERT statements with automatic type inference.
ER Diagram Generator
Generate ASCII entity-relationship diagrams from table definitions.
SQL Explain
Translate SQL queries into plain English explanations of their structure and behavior.
Index Advisor
Analyze SQL queries and suggest indexes to improve query performance.
DB Seed Generator
Generate realistic INSERT seed data for database tables from configurable column definitions.
SQL Transpiler
Translate SQL queries between MySQL, PostgreSQL, SQLite, and SQL Server dialects.
GraphQL Schema Builder
Build GraphQL SDL schemas visually by defining types and fields interactively.
Prisma Schema Generator
Generate Prisma schema.prisma files from model definitions with full datasource configuration.
Redis Command Builder
Build Redis commands interactively for strings, hashes, lists, sets, sorted sets, and more.
MongoDB Query Builder
Build MongoDB queries visually for find, insert, update, delete, and aggregation operations.
SQL Diff
Compare two SQL schemas and highlight added, removed, and changed columns.
REST API Client
Send HTTP requests and inspect responses with a full-featured REST client.
GraphQL Explorer
Build and execute GraphQL queries with schema browsing and response inspection.
API Response Validator
Validate API responses against JSON Schema definitions.
Mock API Builder
Design and deploy mock API endpoints for front-end development and testing.
HTTP Load Tester
Simulate concurrent HTTP requests to measure endpoint performance.
Test Data Generator
Generate realistic fake data sets for testing, seeding, and prototyping.
Regex Test Runner
Test regular expressions against sample strings with match highlighting.
JSON Schema Generator
Infer a JSON Schema from any JSON document automatically.
Rate Limit Calculator
Calculate token bucket and sliding window rate limit parameters.
Response Time Tester
Measure and compare endpoint response times across environments.
Form Validator Tester
Test validation rules for HTML form fields against sample inputs.
OpenAPI Diff
Compare two OpenAPI specifications and highlight breaking changes.
Cookie Inspector
Parse, analyse, and validate HTTP Set-Cookie headers.
Status Page Builder
Create and customise service status page templates.
Smoke Test Generator
Generate smoke test scripts from an OpenAPI specification.
API Changelog Diff
Compare API versions and generate a human-readable changelog.
WCAG Checker
Audit HTML against WCAG 2.2 success criteria.
Readability Analyzer
Measure text readability with Flesch, Kincaid, and Gunning Fog scores.
Semantic HTML Advisor
Review HTML structure for semantic correctness and accessibility.
Alt Text Generator
Generate descriptive alternative text for images.
Keyboard Navigation Tester
Check interactive element focus order and keyboard accessibility.
Focus Order Visualiser
Visualise the keyboard focus traversal order on any page.
Contrast Grid
Test foreground-background colour combinations for WCAG contrast compliance.
Accessible Form Builder
Build accessible HTML forms with ARIA labels, fieldsets, and error messages.
Screen Reader Preview
Preview how a screen reader would announce your page content.
Heading Structure Checker
Validate the heading hierarchy of HTML documents.
Language Attribute Checker
Check lang attributes across HTML elements for i18n correctness.
Landmark Validator
Verify ARIA landmark regions for complete and non-overlapping page structure.
Touch Target Checker
Check interactive elements meet the 44x44 px minimum touch target size.
Dyslexia Preview
Simulate dyslexia-friendly font rendering for text content.
Motion Sensitivity Preview
Preview animations with reduced-motion settings to check motion sensitivity.
Image Compressor
Compress JPEG, PNG and WebP images in-browser with quality controls and side-by-side size comparison.
Image Format Converter
Convert images between JPEG, PNG, WebP, and GIF formats entirely in your browser.
SVG Path Editor
Visualise and edit SVG path data with live preview and coordinate controls.
Sprite Sheet Generator
Pack multiple images into a sprite sheet with automatic layout and CSS position export.
Image Diff Viewer
Compare two images side-by-side and highlight pixel-level differences.
QR Code Reader
Decode QR codes from uploaded images using Canvas pixel analysis in the browser.
Color Picker from Image
Click anywhere on an uploaded image to sample the pixel colour in HEX, RGB, and HSL.
Image Cropper
Crop images visually by dragging a selection region with configurable aspect ratio locking.
Image Watermark Tool
Add text watermarks to photos with position, opacity, font size, and colour controls.
Image Metadata Viewer
Read and display EXIF metadata embedded in JPEG images, including camera settings and GPS data.
Image Metadata Stripper
Remove all EXIF metadata from images client-side to protect your privacy before sharing.
GIF Frame Extractor
Extract and download individual frames from animated GIF files as PNG images.
Image to ASCII Art
Convert images to ASCII or block-character art with adjustable resolution and character density.
Pixel Art Editor
Create pixel art on a configurable grid with a colour palette, fill tool, and PNG export.
Color Palette Extractor
Extract the dominant colour palette from any uploaded image using Canvas pixel sampling.
Screenshot Mockup Generator
Place screenshots inside browser or device frame mockups and export as PNG.
Image Redact Tool
Draw redaction boxes over sensitive areas of an image and download the censored version.
HTML to Markdown
Convert HTML documents to Markdown format with support for headings, lists, links, and code blocks.
Markdown to HTML
Render Markdown as formatted HTML with support for tables, fenced code blocks, and GFM extensions.
YAML Diff
Compare two YAML documents and highlight added, removed, and changed lines.
TSV to CSV Converter
Convert between TSV (tab-separated) and CSV (comma-separated) formats.
CSV to Markdown Table
Convert CSV data to a formatted Markdown table with configurable column alignment.
Markdown to PDF
Export Markdown documents to PDF using browser print capabilities with custom styling.
Crontab to Systemd Timer
Convert cron expressions to systemd .timer unit files with OnCalendar syntax.
Nginx to Caddy
Translate Nginx server block configurations to Caddyfile format.
Env to Docker Compose
Convert .env files to Docker Compose environment section format and vice versa.
Protobuf to JSON
Convert Protobuf text-format messages to JSON and back.
TOML to JSON
Convert TOML configuration files to JSON format with bi-directional conversion support.
Properties to YAML
Convert Java .properties files to YAML and back with full Unicode key support.
XML to JSON (Advanced)
Convert XML to JSON preserving attributes and mixed content for lossless round-trips.
JSON to GraphQL Schema
Generate GraphQL SDL type definitions from a JSON object or array structure.
SQL to Prisma Schema
Convert SQL DDL CREATE TABLE statements to Prisma schema model definitions.
Docker Compose to K8s
Convert Docker Compose service definitions to Kubernetes Deployment and Service manifests.
OpenAPI to TypeScript
Generate TypeScript interface definitions from OpenAPI 3.0 JSON/YAML specifications.
Plist to JSON
Convert Apple Property List (plist) XML files to JSON format for cross-platform use.
Badge Generator
Generate shields.io-style badges and Markdown snippets for README files.
Release Notes Formatter
Format raw changelog entries into clean, publish-ready release notes.
JSDoc/TSDoc Generator
Generate JSDoc and TSDoc comment blocks from function signatures.
Changelog Generator
Create structured changelog sections from conventional commit-style input.
Contributing.md Builder
Build CONTRIBUTING.md templates with setup and pull-request guidelines.
README.md Generator
Generate README.md templates with installation, usage, and contribution sections.
Code of Conduct Generator
Create Code of Conduct templates for open source communities.
Issue Template Builder
Generate GitHub issue templates for bug reports and feature requests.
PR Template Builder
Generate pull request templates with validation and review checklists.
License Header Generator
Generate source code license header comments for project files.
Migration Guide Builder
Build migration guide templates for version upgrades and breaking changes.
Architecture Decision Record
Generate ADR templates with context, decision, and consequences sections.
Security Policy Generator
Generate SECURITY.md documents for vulnerability reporting workflows.
Dependency Table Generator
Generate Markdown dependency tables from package name/version input.
API Endpoint Catalogue
Generate API endpoint catalogues with method, path, and description tables.
Branch Name Generator
Generate consistent branch names from ticket IDs and summaries.
Conventional Commit Builder
Build conventional commit messages with type, scope, and description.
Git Rebase Visualizer
Generate interactive rebase todo plans from commit lists.
Git Diff Stats Analyzer
Analyze diff stats and summarize file, insertion, and deletion counts.
.gitattributes Builder
Generate .gitattributes policies for line endings and binary files.
Git Alias Generator
Generate git alias blocks for team-wide CLI productivity.
Git Hook Generator
Generate pre-commit and commit-msg hook script templates.
Git Bisect Guide
Generate command guides for debugging regressions with git bisect.
Git Stash Manager
Generate stash command workflows for temporary work management.
Merge Conflict Resolver
Generate merge conflict resolution templates and command helpers.
Tag Manager Guide
Generate git tag creation, push, and cleanup command references.
Git Log Formatter
Generate git log format strings and ready-to-run commands.
Cherry Pick Planner
Generate cherry-pick execution plans for backport workflows.
Monorepo Path Filter
Generate path filter configurations for monorepo CI pipelines.
Git Submodule Manager
Generate command references for adding and maintaining git submodules.
Subnet Calculator
Calculate network ranges, masks, and host boundaries for IPv4 CIDR blocks.
Bandwidth Calculator
Estimate transfer times and throughput for files, links, and network speeds.
SSL/TLS Certificate Decoder
Decode PEM certificate blocks and inspect key certificate metadata.
Webhook Tester
Generate and validate sample webhook payloads for common provider formats.
TCP Flag Calculator
Decode TCP flag bitmasks and identify common packet flag combinations.
MAC Address Lookup
Parse MAC addresses and map OUI prefixes to known hardware vendors.
IPv6 Expander/Compressor
Expand and compress IPv6 addresses and normalize canonical forms.
CIDR Overlap Checker
Detect overlaps and intersections across multiple CIDR network ranges.
Ping Sweep Planner
Generate host scan target lists from CIDR ranges for planned ping sweeps.
Network MTU Calculator
Compute effective payload sizes for MTU values and encapsulation overhead.
URL Shortener Expander
Expand shortened links and inspect redirect chain behavior.
WHOIS Formatter
Format raw WHOIS output into readable sections with key domain details.
Network Policy Builder
Generate Kubernetes NetworkPolicy YAML for ingress and egress rules.
Load Balancer Config Gen
Generate load balancer configuration snippets for common proxy setups.
TLS Version Checker
Check TLS protocol compatibility guidance and browser capability details.
Proxy Config Generator
Generate reverse proxy configuration blocks for nginx and Apache.
Ansible Playbook Generator
Create starter Ansible playbooks with hosts, tasks, and service actions.
Terraform Module Scaffold
Generate baseline Terraform module structure and provider configuration.
GitHub Actions Workflow Builder
Generate GitHub Actions workflow YAML for CI and automation pipelines.
Systemd Service Generator
Generate systemd unit files for long-running Linux services.
Vagrant File Generator
Generate Vagrantfile templates for local VM development environments.
AWS CloudFormation Scaffold
Generate starter AWS CloudFormation templates for infrastructure resources.
Pulumi Config Generator
Generate Pulumi project scaffolds and baseline stack configuration.
GitLab CI/CD Generator
Generate GitLab CI pipeline YAML with test and build stages.
Azure DevOps Pipeline Gen
Generate Azure Pipeline YAML templates for build and validation flows.
Jenkins Pipeline Generator
Generate Jenkins pipeline definitions with staged build/test/deploy steps.
Dependabot Config Builder
Generate Dependabot update configuration for package ecosystems.
Pre-commit Config Builder
Generate pre-commit hook configurations for linting and formatting.
Renovate Config Builder
Generate Renovate bot configuration for dependency update workflows.
EditorConfig Generator
Generate .editorconfig settings for consistent formatting across editors.
Privacy Policy Generator
Generate privacy policy templates for websites and apps with configurable data processing sections.
DSGVO Checklist
Review DSGVO/GDPR compliance readiness with a practical checklist for product teams.
Secret Scanner
Scan text for potential API keys, tokens, and credential leaks using pattern rules.
Security Headers Tester
Validate common HTTP security headers and identify missing hardening controls.
Password Hash Verifier
Verify password/hash pairs and inspect algorithm metadata safely for testing.
Certificate Chain Validator
Inspect certificate chains and validate ordering, expiry, and trust assumptions.
Entropy Analyzer
Estimate entropy characteristics of text and binary-like input samples.
CSP Report Parser
Parse CSP violation reports into readable summaries for debugging and triage.
Cookie Security Analyzer
Analyze cookie attributes like Secure, HttpOnly, SameSite, and scope risks.
CORS Policy Builder
Generate and review CORS policy templates for strict and least-privilege setups.
API Key Generator
Generate test-safe API key formats with configurable prefixes and lengths.
Dependency Vulnerability Checker
Summarize dependency risk posture from package/version lists and policy rules.
Permission Calculator
Calculate and explain common permission bitmasks and access combinations.
Secure Random Generator
Generate cryptographically strong random strings for test and development workflows.
OAuth Scope Builder
Compose and validate OAuth scope sets with least-privilege recommendations.
Text to Speech Preview
Preview text-to-speech rendering options and export script-friendly snippets.
Word Frequency Counter
Compute word frequency tables with optional normalization and stopword filtering.
Text to Handwriting
Render text in handwriting-style output for preview and sharing workflows.
Text Encryption Tool
Encrypt/decrypt text for development workflows using deterministic demo-safe modes.
Text Truncator
Truncate text by length, words, or lines with suffix and boundary options.
Multiline to Array Converter
Convert newline-delimited text into language-specific array literals.
Duplicate Line Remover
Remove duplicate lines while preserving configurable ordering behavior.
Column Extractor
Extract and reorder delimited text columns for quick data shaping tasks.
Find and Replace Pro
Perform advanced find/replace with regex support and replacement previews.
Sentence Case Converter
Convert text into sentence, title, and prose-oriented casing conventions.
Text Template Engine
Render parameterized text templates using key-value placeholder inputs.
Line Number Adder
Add or strip line numbers with configurable offsets and padding.
Text to NATO Phonetic
Convert text into NATO phonetic alphabet output for speech clarity workflows.
Solidity Formatter
Format and beautify Solidity smart contract code with configurable rules
Gas Estimator
Estimate EVM gas costs for common operations like transfers, deployments, and swaps.
DeFi Calculator
Calculate APY, impermanent loss, and yield farming returns.
Blockchain Timestamp
Convert block numbers to timestamps and vice versa.
Multisig Builder
Configure multi-signature wallet policies (M-of-N) with signer management and security analysis.
NFT Metadata Generator
Generate ERC-721/1155 metadata JSON with asset references.
Smart Contract Audit
Static analysis checklist for common Solidity vulnerabilities and best practices
Transaction Decoder
Decode raw Ethereum/EVM transaction data (RLP, ABI).
AI Prompt Builder
Structured prompt engineering with system/user/assistant roles.
AI Tokenizer
Estimate token counts for GPT-4, Claude, Llama, Mistral.
AI Training Config
Build training hyperparameter configs (learning rate, batch size, etc.).
AI Cost Estimator
Calculate API costs per model, tokens, and request volume.
AI Model Card Gen
Generate ML model card documentation (Google format).
AI Confusion Matrix
Visualize and compute confusion matrix metrics (precision, recall, F1).
AI Data Labeler
Label and annotate dataset samples with class tags.
AI Feature Importance
Rank feature importance with permutation / SHAP-style scoring.
AI Bias Check
Detect statistical bias in dataset distributions.
Rust Reference
Rust syntax, ownership, lifetimes, traits cheat sheet.
Kotlin Reference
Kotlin syntax, coroutines, null safety reference.
ZK Proof Gen
Generate zero-knowledge proof parameters for Groth16 and PLONK circuits
Token Standard Ref
Quick reference for ERC-20, ERC-721, ERC-1155 and other token standards
Swift Reference
Quick-reference for Swift syntax, types, optionals, closures, and SwiftUI patterns
Ruby Reference
Quick-reference for Ruby syntax, blocks, modules, gems, and Rails patterns
Dart Reference
Quick reference for Dart language syntax, types, and Flutter patterns
Vue.js Reference
Quick reference for Vue.js 3 Composition API, directives, and reactivity
Angular Reference
Quick reference for Angular components, services, directives, and RxJS patterns
Svelte Reference
Quick reference for Svelte 5 runes, reactivity, components, and SvelteKit
GraphQL Reference
Quick reference for GraphQL schema definitions, queries, mutations, and subscriptions
Docker Network Reference
Quick reference for Docker networking modes, Compose networks, and troubleshooting
AWS CLI Reference
Quick reference for commonly used AWS CLI commands across core services
MessagePack Viewer
Encode and decode MessagePack binary format to and from JSON
Avro Viewer
View and validate Apache Avro schemas and generate sample data
BSON Viewer
Encode and decode BSON (MongoDB binary JSON) to and from JSON
Bencode Codec
Encode and decode BitTorrent bencode format
RLP Codec
Encode and decode Ethereum RLP (Recursive Length Prefix) data
CBOR Codec
Encode and decode CBOR (Concise Binary Object Representation) data
ASN.1 Viewer
Parse and visualize ASN.1 DER/PEM encoded structures
NDJSON Viewer
Parse and format newline-delimited JSON (NDJSON) streams
JSON5 Converter
Convert between JSON5 (comments, trailing commas) and strict JSON
Ion Viewer
View and convert Amazon Ion text format to and from JSON
Base32 Codec
Encode and decode Base32 (RFC 4648) with standard and hex alphabets
Brotli Codec
Compress and decompress data with Brotli (RFC 7932) — modern HTTP compression
CSS Variable Gen
Generate CSS custom property systems with fallbacks and themes
Media Query Builder
Build responsive breakpoint media queries visually
Aspect Ratio Box
Generate CSS aspect-ratio containers with fallback padding-hack
SVG to React
Convert raw SVG markup to React/JSX components with proper attribute conversion
Color Token Gen
Generate design token color scales (50-950) from a seed color
Icon Set Preview
Preview and search icon sets with live size, color, and stroke customization
CSS Reset Gen
Generate CSS reset and normalize stylesheets with configurable options
Keyframe Builder
Build CSS @keyframes animations with a visual timeline editor
Tailwind Palette Gen
Generate custom Tailwind CSS color palettes from a base color
Figma Token Gen
Export Figma-compatible design token JSON for colors, spacing, and typography
AST Explorer
Parse and visualize JavaScript/TypeScript/JSON abstract syntax trees
Dependency Graph
Visualize npm/pip dependency trees and detect version conflicts
Code Complexity
Calculate cyclomatic and cognitive complexity for JavaScript/TypeScript functions
Code Line Counter
Count lines of code, comments, and blanks by language
Dead Code Finder
Detect unused exports, unreachable code paths, and unused variables
Import Sorter
Sort and group import statements for ESM, CJS, and type imports
Env Diff
Compare .env files across environments to find missing or changed variables
Package.json Gen
Scaffold package.json with scripts, dependencies, and metadata
TSConfig Builder
Build tsconfig.json with guided option selection and presets
ESLint Config Gen
Generate ESLint flat config for Next.js, React, and Node.js projects
Prettier Config Gen
Generate .prettierrc with opinionated presets and customizable options
VS Code Settings Gen
Generate .vscode/settings.json for team-shared editor configurations
VS Code Copilot Settings Gen
Build a paste-ready GitHub Copilot config — Wizard or Power Builder, with MCP, instructions, and lint.
Copilot Instructions Lab
Audit, refactor, and ship pristine .github/copilot-instructions.md, applyTo files, AGENTS.md, and chat-mode prompts — with rules, scores, profiles, suppressions, and PR-ready patches.
XPath Tester
Test XPath expressions against XML documents with live results
Text Stats
Analyze text for character count, word count, sentence count, and readability metrics
Markdown Slides
Convert Markdown into presentation slides with live preview
Changelog Parser
Parse CHANGELOG.md into structured JSON following Keep a Changelog format
Frontmatter Editor
Parse and edit YAML/TOML frontmatter in Markdown files
Text to Table
Convert delimited or fixed-width text into Markdown or HTML tables
CSV Filter
Filter, sort, and transform CSV columns with expressions
Multilang Preview
Preview text in multiple writing systems and directions (LTR/RTL)
Meeting Notes Gen
Generate structured meeting notes with agenda, attendees, and action items
Text Redact
Detect and redact PII like emails, phone numbers, and SSNs from text
Reading Time
Estimate reading time, speaking time, and word pace for any text
K8s Validator
Validate Kubernetes YAML manifests against common API schema rules
File Hash
Calculate SHA-256, SHA-1, and MD5 checksums for files using Web Crypto API
Color Name Lookup
Bidirectional lookup: color name to hex/RGB and hex to nearest named color
Timezone Meeting
Plan meeting times across multiple time zones with overlap finder
Uptime Calculator
Convert uptime percentages to allowed downtime per year, month, week, and day
Incident Response Gen
Generate incident response playbook templates for SEV 1-4 incidents
Postmortem Gen
Generate blameless post-mortem documents with timeline and action items
Runbook Gen
Generate operational runbook templates for common SRE procedures
Feature Flag Gen
Generate feature flag configs for LaunchDarkly, Unleash, Flagsmith
A/B Test Calc
Calculate statistical significance, sample size, and power for A/B tests
AI Accessibility Fixer
Detect and fix accessibility issues in HTML/JSX using AI analysis.
AI Comment Generator
Generate code comments and documentation from source code using AI.
AI Config Migrator
Migrate configuration files between formats using AI (Webpack→Vite, etc.).
AI Dependency Advisor
Analyze dependencies and suggest upgrades, alternatives, or removals.
AI Git Diff Summarizer
Summarize git diffs into human-readable change descriptions.
AI .env Generator
Generate .env files with recommended variables for your project stack.
AI Performance Advisor
Analyze code for performance bottlenecks and suggest optimizations.
AI PR Description Writer
Generate pull request descriptions from diff content using AI.
AI Database Query Explainer
Explain SQL/NoSQL queries step by step in plain English.
AI Refactor Suggestions
Suggest code refactoring improvements using AI analysis.
AI Regex Explainer
Explain regex patterns in plain English using AI.
AI Security Reviewer
Scan code for security vulnerabilities and suggest fixes.
AI Type Generator
Generate TypeScript/Python type definitions from sample data.
AI Variable Namer
Suggest descriptive variable and function names from context.
Dev Typing Test
Test your coding speed — type real code snippets in JavaScript, TypeScript, Python, C#, Go, Rust, SQL and Bash. Track WPM, accuracy and streaks.
Bug Hunter
Spot the bug in 90 real code snippets across JavaScript, TypeScript, Python, Go, Rust and C#. Timed rounds, streak bonuses and a global scoreboard.
Regex Golf
Write the shortest regex to match all targets while rejecting anti-targets. Par-based golf scoring across 5 courses and 90 holes.
HTTP Status Quiz
Learn HTTP status codes by playing. 60+ codes from 1xx to 5xx including WebDAV and IETF drafts. Timed rounds, streak bonuses and a global leaderboard.
Code Output
Predict what real code snippets print — 45 tricky examples across JavaScript, TypeScript, Python, Go, Rust and C#. Hoisting, coercion, closures, ownership, async edge cases.
Git Speedrun
Fix real-world Git messes under time pressure. 30 scenarios across undo, branch, remote, recovery and config — with why-not explanations and pro tips.
Reaction Time
Test your reflexes — click as fast as possible when the screen turns green. 5 attempts per round with best, average and median stats, plus a global leaderboard.
AI Docker Compose Generator
Generate docker-compose.yml from a stack description.
AI Terraform Generator
Generate Terraform HCL from infrastructure descriptions.
AI Kubernetes YAML Generator
Generate Kubernetes manifests (Deployment, Service, Ingress) from descriptions.
AI Nginx Config Generator
Generate nginx.conf for reverse proxy, static sites, or load balancing.
AI Helm Chart Generator
Generate Helm chart skeleton (Chart.yaml, values.yaml, templates).
AI Makefile Generator
Generate a Makefile with common build/test/deploy targets.
AI GraphQL Schema Generator
Generate GraphQL SDL schema from a domain description.
AI JSON Schema Generator
Generate JSON Schema from sample JSON or a description.
AI Database Schema Generator
Generate SQL DDL (CREATE TABLE) statements from descriptions.
AI Prisma Schema Generator
Generate Prisma schema (datasource, models, relations) from descriptions.
AI Design Pattern Suggester
Suggest applicable design patterns for a problem description.
AI .htaccess Generator
Generate Apache .htaccess rules for redirects, security, caching.
AI CORS Policy Generator
Generate CORS headers for Express, Nginx, Apache, or as raw config.
AI Release Notes Generator
Generate release notes from a list of commits or changes.
AI .gitignore Generator
Generate a .gitignore for a stack (Node, Python, Java, Go, etc.).
AI CSP Generator
Generate Content-Security-Policy headers from required sources.
AI SEO Meta Tag Generator
Generate SEO meta tags (title, description, Open Graph, Twitter Card).
AI Email Template Generator
Generate responsive HTML email templates (welcome, reset, receipt).
AI systemd Unit Generator
Generate systemd .service unit files for daemons.
AI Test Data Generator
Generate realistic test data (users, orders, products) as JSON.
AI API Client Generator
Generate API client boilerplate (fetch, axios, requests, HttpClient).
AI robots.txt Generator
Generate robots.txt rules for crawlers and sitemaps.
AI JSON-LD Generator
Generate Schema.org JSON-LD structured data (Article, Product, FAQ, Event).
AI CI/CD Pipeline Generator
Generate CI/CD pipeline (GitHub Actions, GitLab CI) from project description.
AI Workflow Generator
Generate workflow automation skeletons (n8n-style, Zapier patterns).
Trace ID Generator
Generate W3C, B3, B3-multi, Jaeger, and AWS X-Ray trace and span IDs — 64 or 128-bit, with sampled/not-sampled flags and bulk output.
Log Pattern Extractor
Pull recurring patterns out of a noisy log paste — detect templates, frequencies, and outliers.
Log Redactor
Strip emails, IPs, tokens, and secrets from log dumps before sharing — DSGVO-safe scrubbing.
Log Anonymizer Replay
Produce a sanitised replay of a log session — preserve timing while masking PII.
Log Level Rewriter
Convert log levels between frameworks (winston ↔ pino ↔ log4j ↔ logback) keeping severity intact.
Log Frequency Heatmap
Paste a log and see what fires when — visual frequency heatmap by minute and source.
journalctl Filter Builder
Compose journalctl filter flags visually — units, priority, time windows, kernel ring.
Apache Log Parser
Combined / common / custom Apache log format → structured rows you can filter and export.
nginx Log Parser
Parse nginx access and error logs with field picker — extract status, latency, upstream.
CloudWatch Insights Builder
Visual builder for AWS CloudWatch Logs Insights queries with sample data preview.
Loki LogQL Builder
Grafana Loki query composer — labels, line filters, parser stages, aggregations.
Splunk SPL Builder
Splunk SPL query composer with autocomplete preview — search, eval, stats, timechart.
Elastic KQL Builder
Kibana KQL builder + sample preview — fields, ranges, free-text, boolean composition.
OTLP Trace Decoder
Paste OTLP JSON and see a span tree — durations, attributes, span events, resource info.
Jaeger Trace Viewer
Paste Jaeger JSON → flame graph view of spans, durations, and parent/child links.
Flamegraph Viewer
Paste folded stacks and get an interactive SVG flamegraph — zoomable, searchable.
pprof Text Viewer
Render Go pprof text output as a collapsible tree — flat, cumulative, percentages.
Chrome trace.json Viewer
Drop a Chrome trace.json and see a timeline view of frames, paint, scripting, layout.
Stack Trace Symbolizer
Collapse common framework noise from stack traces — node_modules, vendored, internals.
Correlation ID Linker
Pivot between request-id, trace-id, session-id, and span-id — explain how they relate.
Sentry Event Decoder
Paste a raw Sentry event JSON and see a human-friendly view — release, tags, breadcrumbs.
Node.js Stack Cleaner
Strip node_modules and internal frames from Node.js stack traces — keep only your code.
JS Source Map Locator
Given a line/col + source map, find the original file and position — supports v3 maps.
TS Error Explainer
Paste a TS#### error code → plain-language meaning + most common fix recipe.
ESLint Rule Explainer
Paste an ESLint rule id → why it exists, when to disable it, and how to autofix.
Webpack Error Decoder
Translate cryptic webpack messages into actionable fixes — loader, resolve, chunk errors.
Vite Error Decoder
Decode Vite build and dev errors — pre-bundling, ESM interop, plugin order issues.
Rust Panic Formatter
Pretty-print Rust panic backtraces — collapse std frames, highlight your crate.
Python Traceback Collapser
Collapse stdlib frames in Python tracebacks — site-packages folding, your-code highlighting.
Java Stack Trimmer
Keep only your-package frames in long Java stack traces — drop reflection, proxy, generated.
.NET Stack Formatter
Pretty .NET stack traces — async state machine unwinding, file:line tidy-up.
Go Panic Decoder
Split goroutines, highlight your code in Go panic dumps — group by state, show trees.
Kotlin Coroutine Trace
Coroutine context unwinding — explain who suspended where, dispatcher and job tree.
Swift Crash Symbolicator
Manual symbolication helper for Swift crash logs — paste atos output, get human frames.
Crash Report Diff
Compare two crash reports for novel frames — highlight what changed between releases.
Prometheus Query Builder
PromQL composer with sample data — selectors, functions, aggregations, by/without.
Prometheus Recording Rules
Generate Prometheus recording-rule YAML — eval interval, naming convention, labels.
Prometheus Alert Rules
Visual alert-rule builder + Alertmanager preview — for/severity/runbook annotations.
Grafana Dashboard Validator
Paste a Grafana dashboard JSON → check for broken refs, undefined variables, dead panels.
Grafana Panel Template
Generate a Grafana panel JSON from intent — datasource, query, transform, visualization.
StatsD Client Snippet
Pick your language → emit StatsD client code — counter, gauge, timing, histogram.
Metric Name Linter
Enforce app_subsystem_unit naming style — Prometheus / OpenMetrics conventions.
SLO Budget Calculator
Error-budget burndown calculator — given SLO, traffic, and error rate, project budget left.
Apdex Calculator
Apdex score from latency buckets — satisfied/tolerating/frustrated thresholds explained.
Percentile From Histogram
Compute p50/p95/p99 from histogram buckets — Prometheus-style le buckets, accurate quantile.
Rate From Counter
Convert raw counter samples to per-second rate — handle resets, gaps, irregular spacing.
Alert Route Tester
Given an Alertmanager config, test which receiver fires for a sample label set.
PagerDuty Event Tester
Preview a PagerDuty event payload — incident key, severity, dedup behaviour explained.
Opsgenie Payload Builder
Visual builder for Opsgenie alerts — priority, responders, tags, custom fields.
Slack Incident Template
Generate a structured incident message for Slack — owner, status, customer impact, ETA.
tcpdump Filter Builder
Visual BPF filter composer for tcpdump — host, port, proto, direction, payload patterns.
Wireshark Display Filter
Wireshark display-filter helper — protocol fields, comparison ops, slicing examples.
mitmproxy Script Generator
Generate addons for mitmproxy — request/response hooks, headers, body rewrite.
HAR Summarizer
Paste a HAR file → top-N slowest, blocked, redirected requests with TTFB and size.
HAR Redactor
Strip auth headers, cookies, and tokens from a HAR file before sharing — safe for tickets.
TLS Handshake Explainer
Paste a pcap text or curl trace → step-by-step explanation of the TLS handshake.
MTU Path Tester
Explain why path-MTU varies — fragmentation, PMTUD blackholes, and DF flag effects.
DNS Trace Walker
Visualise DNS resolution chain step by step — root → TLD → authoritative → answer.
WHOIS History Diff
Compare two WHOIS dumps — registrar changes, contact changes, nameserver moves.
SSH Config Builder
Visual ~/.ssh/config builder — Host, Hostname, User, IdentityFile, ProxyJump, Match.
Port Knock Helper
Explain port-knocking sequences — sequence design, replay risk, knockd config snippet.
TCP State Explainer
Show the TCP state machine for a sequence of events — SYN, ACK, FIN, RST transitions.
QUIC Frame Decoder
Decode QUIC frame samples — STREAM, ACK, CONNECTION_CLOSE, PATH_CHALLENGE annotations.
HTTP/2 Frame Viewer
Paste a hex dump → frame view — type, flags, stream id, payload preview.
WebSocket Frame Decoder
WebSocket frame decoder — opcode, mask, payload-length, fragmentation handling.
Userscript Template
Boilerplate Tampermonkey/Greasemonkey scaffold — meta block, match patterns, GM_ APIs.
Web Vitals Explainer
Paste a vitals JSON → explain which page hurts which metric (LCP, INP, CLS, FCP, TTFB).
CLS Source Finder
Explain layout-shift causes from a JSON snapshot — element, score, fix recommendations.
INP Explainer
INP scoring guide with diagnostic checklist — input delay, processing, presentation breakdown.
React Profiler Summary
Paste React Profiler export → top renderers, wasted commits, duration totals.
Chrome Storage Inspector
Paste exported storage → diff cookies, localStorage, sessionStorage between snapshots.
Service Worker Inspector
Paste registration JSON → service-worker lifecycle view — installing, waiting, active.
Permissions API Tester
Runtime browser permission inspector — query state for camera, mic, notifications, push.
Clipboard Event Debugger
Paste and inspect clipboard items — types (text/html, text/plain, files) and presentations.
IntersectionObserver Builder
Visual root, rootMargin, and threshold builder — paste config and see callbacks fire.
Pointer Event Debugger
Sample event → which fields are populated — pointerType, pressure, tangentialPressure, twist.
Gamepad Mapper
Show live gamepad inputs and remap helper — buttons, axes, dead-zones, vibration.
MediaDevices Enumerator
Enumerate cameras / mics / speakers with capabilities — resolution, fps, sample rate.
WebGL Info
Show GPU strings, extensions, max texture size, and renderer info — useful for support tickets.
Canvas Fingerprint Checker
Show what your canvas exposes — fingerprinting surface area and entropy estimate.
top Output Parser
Paste top/htop snapshot → table view — sort by CPU, memory, command; filter by user.
ps Output Parser
ps aux output → process tree — show parents, children, threads, command line.
lsof Output Parser
Group lsof rows by command, user, or protocol — find leaking sockets and file handles.
netstat Parser
Parse netstat -tunlp output to a filterable list — proto, local/remote, state, pid.
iostat Explainer
Explain iostat columns — await, svctm, %util — and identify bottlenecked devices.
vmstat Explainer
Explain vmstat columns — r, b, swap, free, si, so, bi, bo — and what to alert on.
dmesg Decoder
Categorise dmesg lines by subsystem — network, storage, USB, OOM, hardware errors.
journalctl Tree
Group journalctl lines by unit, then by priority — collapsible tree, filterable.
strace Summarizer
Top-N syscalls from strace output — count, total time, average, error rate per call.
perf stat Summarizer
Interpret perf stat output — IPC, branch-miss rate, cache-miss rate, with hardware notes.
Incident Timeline Builder
Paste a comma log → SVG timeline image — events, durations, actor swimlanes.
Five Whys Builder
Guided 5-Whys form for root cause analysis — capture every layer with citations.
SLO Policy Builder
Formalise availability and latency SLOs — SLI definition, target, window, exclusion list.
Error Budget Policy Generator
Generate budget-burn rules — fast/slow burn alerts and freeze policies.
Chaos Experiment Template
Chaos Mesh / LitmusChaos manifest scaffold — pod-kill, network-loss, IO-fault.
Runbook Checklist Generator
Convert intent → runbook checklist with steps, checks, and rollback notes.
On-call Handover Template
Handover note generator — open incidents, deploys in flight, customer-impacting issues.
Severity Matrix Builder
Define severity levels for a team — customer impact, response time, escalation path.
GameDay Script Builder
Scripted disaster-day exercises — failure injection, hypothesis, success criteria.
Comms Update Template
Status-page / customer-update message generator — phases, language, links to follow-ups.
Package Size Estimator
Paste package.json and get an estimated install + node_modules size — surface heavyweight deps before installing.
Import Cost Checker
Paste an import line → ESM bundle-size estimate with tree-shake potential and minified+gzipped numbers.
Tree Shake Checker
Paste exports and an entry point → which symbols would be tree-shaken by esbuild / Rollup.
Barrel File Detector
Paste an index.ts barrel file → flag re-export pitfalls that hurt tree-shaking and cold-start.
Circular Import Finder
Paste an import graph (TS/JS) → detect cycles, show the path, suggest break points.
Webpack Stats Summarizer
Drop a stats.json from webpack → biggest chunks, duplicate modules, asset breakdown.
Vite / Rollup Stats
Paste a Rollup metafile → top modules, dynamic imports, render time per chunk.
esbuild Metafile Reader
Explore an esbuild metafile interactively — input → output mapping, byte counts, splits.
Bundle Budget Tracker
Define per-route size budgets and check current numbers — fail/warn thresholds per asset type.
Dynamic Import Planner
Paste your route map → suggested code-split points and expected payload reduction.
Polyfill Impact Checker
Pick a browserslist + features → polyfill bytes added to your modern bundle.
Browserslist Resolver
Resolve a browserslist query → exact browsers + version + global usage share.
Can I Use Quickref
Paste a feature name → support matrix across major browsers — desktop and mobile.
MDN Baseline Checker
Check a web platform feature against the MDN Baseline — newly available, widely available, limited.
Legacy Target Helper
Generate Babel / SWC config for legacy targets (IE11, old Safari, KaiOS) without overshooting.
Lighthouse Score Explainer
Paste a Lighthouse JSON report → which audit cost you the score and how to recover it.
Core Web Vitals Budget
Set LCP / INP / CLS targets and validate against sample measurements — pass / fail visualisation.
React Render Budget
Paste a React Profiler export → time per component, wasted renders, top offenders.
Vue Perf Marks
Paste Vue performance marks → render breakdown by component, hook timings, top offenders.
Svelte Component Profiler
Analyse Svelte compiler stats and runtime profile → biggest components, DOM ops cost.
Angular Change-Detection Tracer
Paste Angular profile → change-detection cost per component tree, OnPush opportunities.
DOM Mutation Counter
Paste a MutationObserver log → mutation frequency by node, type, and source.
Paint Flash Explainer
Interpret Chrome paint-flash recordings → layers that re-paint hot, suggested fixes.
Request Waterfall Builder
Convert a HAR file into a critical-path waterfall — render-blocking, parallel, deferred.
JS Event Loop Trace
Explain a Performance.timeline export — micro/macro tasks, RAFs, idle callbacks visualised.
CPU Throttle Impact
Predict score change for a CPU class (4× / 6× slowdown) given baseline timings.
Network Throttle Impact
Predict load timing under 3G / 4G / fast 3G profiles given asset sizes and waterfall.
Frame Budget Tracker
60 / 90 / 120 fps frame-budget calculator — task ms, idle ms, jank threshold.
Long Task Locator
Paste a Performance trace → top long tasks (> 50 ms), origin script, ratio of total time.
Memory Leak Checklist
Guided checklist for common JS memory leaks — listeners, closures, detached DOM, observers.
Responsive Image srcset
Generate srcset / sizes from a single source — common breakpoints, density descriptors.
Image Quality vs Size
Compare formats and quality presets — JPEG / WebP / AVIF byte estimates by quality and size.
LQIP Generator
Generate low-quality image placeholder data URIs — base64 thumb plus CSS blur scaffold.
BlurHash Generator
Generate BlurHash strings client-side — pick component count and preview the placeholder.
Video Poster Extractor
Pick the best frame description for a poster — avoid black frames, choose representative content.
WebP vs AVIF Helper
Decide which format to ship — encode time, decode time, size, browser support trade-offs.
Image CDN URL Builder
Build Imgix / Cloudinary / Bunny URLs with transforms — width, quality, focal, format.
Image Aspect Mapper
Common aspect ratios cheat sheet — 1:1, 16:9, 4:5, 9:16 with sizes and CSS examples.
OG Image Template
Generate Open Graph image HTML/CSS templates — Vercel OG ready, multi-size variants.
Favicon Budget Builder
Minimal favicon set generator — icon.svg + apple-touch-icon + manifest, no 32-file zoo.
CSS Specificity Calculator
Paste a selector → specificity breakdown (a, b, c) with explanation per token.
CSS Cascade Explainer
Paste a list of rules → which one wins for a target element and why (origin, layer, specificity).
CSS @layer Builder
Design a @layer strategy — reset, base, components, utilities — with cascade preview.
Container Query Builder
Visual container-query builder — type / name / size queries, generated CSS.
CSS Subgrid Helper
Design subgrid templates and preview row / column inheritance — generated CSS plus diagram.
CSS Anchor Positioning
Generate an anchor-positioning sample — anchor name, position-area, fallback strategies.
CSS View Transitions
Scaffold view-transition CSS for a simple route change — name, group, capture rules.
Scroll-Driven Animation
Generate CSS scroll-driven and view-driven animations — timeline, ranges, fallback.
CSS color-mix() Builder
Helper for the CSS color-mix() function — pick colour spaces, ratios, see live output.
CSS Relative Color
Relative color syntax helper — derive variants (lighter / saturated / mixed) from one base.
CSS Nesting Validator
Validate nested CSS for browser-support pitfalls — & rules, complex selectors, polyfill needs.
CSS Custom Prop Fallback
Fallback chain helper for var(--token) — generate guarded property declarations.
CSS Typed OM Snippet
Generate Typed OM JavaScript code — read & write CSSUnitValue, CSSKeywordValue safely.
CSS Houdini Paint Worklet
Paint Worklet template — register inputs, draw to context, attach to a CSS property.
Anchor Overlap Finder
Detect overlapping CSS anchors in a layout — preview the overlap zones and rules at fault.
Design Token Lint
Validate a design-token JSON file against the W3C draft — type, $value, $description.
Design Token Diff
Compare two design-token files → added, removed, changed — value, type, alias drifts.
Design Token Converter
Style Dictionary input → CSS custom properties / Tailwind / iOS / Android formats.
Radix Scale Builder
Generate Radix-style 12-step colour scales — perceptually uniform, light + dark variants.
OKLCH Scale Builder
Perceptual scale builder — pick a base colour, generate evenly spaced lightness ramps.
Golden Ratio Grid
Golden-ratio layout helper — generate columns, gutters, and reading rhythm grids.
Eight-Point Grid Checker
Check spacings (paste px values) against the 8pt grid — flag drifts and round-to-nearest.
Breakpoint Set Helper
Derive breakpoints from common devices — modern phones, tablets, desktops, ultrawide.
vh / vw Calculator
Viewport unit helper — handle mobile addressbar quirks with svh / lvh / dvh recommendations.
Safe Area Inset Helper
env(safe-area-inset-*) helper — generate padding rules for iPhone notch and Android cutouts.
ARIA Pattern Picker
Pick an APG pattern (combobox, menu, dialog) → required ARIA attributes and keyboard map.
ARIA Live Region Builder
Choose polite vs assertive, atomic, relevant — emit a working live-region template.
Focus Trap Tester
Paste DOM markup → simulated tab order — flag missing focusables and trap leaks.
Skip Link Builder
Generate accessible skip-link patterns — to main, to nav, with proper focus styling.
Reduced Motion Checker
Generate prefers-reduced-motion media-query checks — JS hook + CSS guards.
Forced Colors Tester
Windows high-contrast helper — preview colours with forced-colors media query rules.
Alt Text Checklist
Guided alt-text quality check — purpose, length, redundancy, decorative vs informative.
Text Resize Tester
Preview text at 200% browser zoom — flag overflows, truncations, and reflow issues.
Color Contrast Batch
Batch-check many fg/bg pairs against WCAG AA / AAA — table results with pass/fail.
Caption Format Converter
Convert between VTT, SRT, and TTML — preserve cues, styles, and timing.
package.json bin Builder
Generate the bin field with conflict checks — single string or map form, shebang reminder.
npm exports Builder
Visual builder for the exports field — conditions, subpaths, types, default fallbacks.
package.json engines Builder
Build the engines field with conflict checker — Node, npm, pnpm, yarn ranges.
Monorepo Deps Graph
Paste workspaces config → dependency graph between packages, cycle detection.
pnpm Overrides Helper
Build pnpm.overrides safely — version range, parent constraint, caveats explained.
Yarn Resolutions Helper
Yarn resolutions builder — wildcard patterns, scoped packages, transitive overrides.
Peer Dependencies Validator
Given installed deps and ranges → validate peerDependencies satisfaction across the tree.
Node Engines Resolver
Find the Node version that satisfies engines for all installed packages — intersection finder.
tsconfig paths Builder
Visual builder for paths and baseUrl — preview resolved aliases, common pitfalls.
tsconfig extends Merger
Merge multiple tsconfigs (extends chain) into a flat resolved view — see the actual config.
.swcrc Builder
Build a .swcrc config — JSC parser opts, transforms, target, env, minify settings.
Babel preset-env Helper
Pick browserslist targets and see which Babel transforms run — predicted bundle impact.
PostCSS Config Builder
Visual PostCSS pipeline — autoprefixer, nesting, custom-properties, env, modular order.
Rollup Config Builder
Minimal Rollup config builder — input / output formats, plugins, externals, watch mode.
Vite Plugin Template
Vite plugin scaffold — name, hooks, transform, generateBundle skeleton with TypeScript.
Next.js Route Planner
Plan App Router segments — layouts, parallel routes, intercepting routes, route groups.
Next.js Cache Strategy
Pick the right caching primitive — revalidate, force-cache, no-store, fetch tagging recipes.
Remix Loader / Action Helper
Decide loader vs action — read vs write semantics, mutation patterns, redirect rules.
Astro Island Helper
Pick a hydration directive — client:load, idle, visible, media — for an Astro island.
SvelteKit load Helper
Decide between universal load, server load, and form actions — flowchart with examples.
Nuxt Layer Planner
Nuxt layers planner — extend chain, override resolution, shared module discovery.
Solid createResource Helper
SolidJS createResource scaffold — fetcher, source signal, mutate, refetch patterns.
Qwik Resumability Checker
Explain Qwik serialization boundaries — what gets shipped, what stays on server, $ markers.
HTMX Pattern Picker
HTMX recipes — swap targets, hx-trigger combos, hx-boost, OOB swap, indicators.
AlpineJS Cheatsheet
Alpine directives quick reference — x-data, x-show, x-for, x-transition, magic helpers.
STRIDE Analyzer
Paste a data-flow description → STRIDE categories with example threats per element.
LINDDUN Analyzer
Privacy threat analysis — Linkability, Identifiability, Non-repudiation, Detectability, Disclosure, Unawareness, Non-compliance.
PASTA Stage Tracker
Track progress through PASTA's seven stages — objectives, scope, decomposition, threat analysis, vulnerabilities, attack modeling, residual risk.
Attack Tree Builder
Visual attack-tree builder — root goal, AND / OR nodes, leaf attacker actions, cost annotations.
Kill Chain Mapper
Map MITRE ATT&CK techniques to your assets — recon, weaponization, delivery, exploitation, install, C2, action.
DREAD Scorer
DREAD risk scoring — Damage, Reproducibility, Exploitability, Affected users, Discoverability — 1-10 each, average.
CVSS Calculator
CVSS v3.1 and v4.0 vector builder + base / temporal / environmental score with severity rating.
Risk Matrix Builder
Build a risk matrix from impact × likelihood inputs — visual heatmap with mitigation columns.
Data Flow Diagram Builder
DFD builder for threat modeling — processes, data stores, external entities, trust boundaries.
Trust Boundary Mapper
Define and visualise trust boundaries — what crosses, what data, what authority is exchanged.
Asset Inventory Template
Security asset inventory generator — owner, data class, criticality, exposure, dependencies.
Attack Surface Mapper
Endpoint enumeration template — internet-exposed surfaces, auth requirements, admin paths.
MITRE ATT&CK Quickref
Search ATT&CK tactics and techniques — quick reference with technique IDs and descriptions.
MITRE D3FEND Quickref
Search MITRE D3FEND defensive techniques — quick reference cross-referencing ATT&CK tactics.
OWASP ASVS Checker
Guided ASVS L1 / L2 / L3 audit — pick a level and walk through requirements with evidence cells.
CVE Search
Paste a package + version → suggested CVE search URLs (NVD, OSV, GitHub Advisories).
OSV Query Builder
Build OSV.dev queries — package + ecosystem + version range, vulnerability filter.
CycloneDX SBOM Builder
Minimal CycloneDX SBOM builder — components, licenses, hashes, metadata, formatted JSON.
SPDX SBOM Builder
SPDX SBOM builder — packages, licenses, relationships, files — emits valid SPDX JSON.
SBOM Diff
Compare two SBOMs (CycloneDX or SPDX) → added, removed, version-bumped, license-changed.
VEX Document Builder
VEX (Vulnerability Exploitability eXchange) statement builder — affected, not_affected, fixed, under_investigation.
SLSA Attestation Builder
SLSA provenance scaffold — builder, build type, materials, byproducts, env, recipe.
Sigstore Cosign Snippet
Generate Cosign sign / verify / attest commands for OCI images and arbitrary blobs.
Dep License Compatibility
License compatibility matrix — paste your project license + deps → flag incompatible combos.
License SPDX ID Lookup
License name → official SPDX identifier — fuzzy match common variants and abbreviations.
License NOTICE File Generator
Generate a NOTICE file from your dependency tree — Apache-2.0, BSD-3, MIT attributions.
Dep Pin Strategy
Pick a dependency pinning strategy — exact, caret, tilde — with lockfile guidance per ecosystem.
npm audit Summarizer
Paste npm audit JSON → top risks grouped by severity, dedupe across paths, fix advice.
pip-audit Summarizer
Paste pip-audit JSON → vulnerabilities grouped, fix versions, deprecated packages.
cargo-audit Summarizer
Paste cargo-audit JSON → vulnerabilities grouped, advisory IDs, patched versions.
CSRF Token Flow
Explain double-submit, synchronizer-token, and SameSite-only strategies — pick the right one.
XSS Payload Explainer
Paste a payload → mechanism (reflected / stored / DOM), browser parsing path, defenses.
XSS Context Checker
Pick a context (HTML / JS / URL / CSS / attribute) → safe encoding rules and library calls.
Prototype Pollution Checker
Check JS object payload for risky keys — __proto__, constructor.prototype, polluting paths.
SSRF Rule Builder
Generate SSRF allow-list rules — block link-local, metadata, private ranges, DNS rebinding guards.
Open Redirect Checker
Validate redirect target rules — allow-list hosts, scheme guards, URL parser pitfalls.
Clickjacking Helper
Generate frame-ancestors CSP and X-Frame-Options — explain modern vs legacy approach.
CORS Debug Walkthrough
Step-through CORS preflight — origin, method, headers, credentials, common misconfigurations.
Cookie Security Audit
Audit cookies for Secure / HttpOnly / SameSite / __Host- prefix — paste Set-Cookie headers.
SameSite Explainer
SameSite Lax / Strict / None decision tree — third-party login, embeds, payment iframes.
Auth Flow Picker
Pick the right OAuth / OIDC flow for your use case — SPA, mobile, server, machine-to-machine.
OIDC ID Token Validator
Validate OIDC ID-token claims — iss, aud, exp, nonce, sig — surface common acceptance bugs.
PKCE Code Checker
Verify a PKCE code_verifier / code_challenge pair — S256 hash check, length validation.
WebAuthn Flow Explainer
WebAuthn ceremony walkthrough — registration vs authentication, attestation, RP, options.
Passkey Readiness Check
Check a site for passkey support — WebAuthn endpoints, browser support, recovery flow.
GDPR RoPA Builder
Records of Processing Activities builder — purpose, legal basis, categories, retention, recipients.
GDPR DPA Checklist
Data Processing Agreement checklist — Art. 28 requirements, sub-processors, audits, transfers.
GDPR DSAR Template
Data Subject Access Request response template — identity check, scope, format, deadline.
GDPR Breach Notification
72-hour breach notification template — supervisory authority + data subject letter.
DPIA Template
Data Protection Impact Assessment scaffold — necessity, proportionality, risks, safeguards.
CCPA / CPRA Checklist
CCPA / CPRA compliance checklist — disclosures, opt-outs, sensitive PI, contracts.
HIPAA Checklist
HIPAA Security Rule checklist — administrative, physical, technical safeguards.
PCI DSS SAQ Helper
Pick the correct SAQ (A, A-EP, B, B-IP, C, C-VT, D, P2PE) for your card-handling profile.
ISO 27001 Control Mapper
Map controls to evidence — Annex A controls table with current implementation status cells.
SOC 2 Evidence Tracker
Trust Service Criteria evidence map — Common Criteria + selected categories with controls.
NIST CSF Mapper
Map activities to NIST Cybersecurity Framework functions — Identify, Protect, Detect, Respond, Recover.
CIS Benchmark Checklist
Quick reference to CIS Critical Security Controls v8 — 18 controls with implementation hints.
TISAX Readiness Check
TISAX compliance checklist — VDA ISA assessment levels for automotive supply chain.
NIS2 Readiness Check
EU NIS2 directive readiness checklist — essential / important entities, governance, reporting.
DORA Readiness Check
EU DORA financial-sector readiness checklist — ICT risk, incident reporting, third-party.
PQC Algorithm Picker
Pick a post-quantum algorithm — Kyber / Dilithium / Falcon / SPHINCS+ — for your use case.
Kyber / ML-KEM Explainer
Kyber / ML-KEM walkthrough — key encapsulation mechanism, parameter sets, performance.
Dilithium / ML-DSA Explainer
Dilithium / ML-DSA walkthrough — module-lattice signatures, security categories, sizes.
Falcon Signature Explainer
Falcon walkthrough — NTRU lattices, FFT-based signing, smaller signatures than Dilithium.
Argon2 Param Tuner
Argon2 cost-parameter tuner — pick t / m / p that hits your target ms on your hardware.
scrypt Param Tuner
scrypt cost picker — N / r / p tuner with memory cost calculator and target time.
PBKDF2 Iteration Helper
Iteration helper aligned with OWASP guidance — pick HMAC, output length, iteration count.
Key Rotation Planner
Key-rotation schedule builder — algorithm, expected lifetime, overlap window, retirement.
Secret Lifetime Calculator
TTL planner for tokens / secrets — entropy, blast radius, rotation cost trade-offs.
Entropy Source Checker
Explain CSPRNG sources per platform — getrandom, /dev/urandom, BCryptGenRandom, crypto.subtle.
RBAC Matrix Builder
Role / permission matrix — define roles, permissions, action verbs; export CSV / JSON.
ABAC Policy Builder
Attribute-based access control policy builder — subject / resource / environment attributes.
Cedar Policy Builder
AWS Cedar policy template — principal, action, resource, when conditions, schema linking.
OPA Rego Builder
OPA Rego template builder — package, default deny, allow rules, helper functions.
Casbin Model Builder
Casbin model + policy scaffold — request, policy, role, matcher definitions.
Keycloak Realm Template
Minimal realm export — clients, scopes, mappers, identity providers, default roles.
Auth0 Action Template
Auth0 Action template — login flow trigger, post-user-registration, MFA enforcement.
Cognito Trigger Template
Cognito Lambda trigger template — pre-sign-up, post-confirmation, custom-message.
Firebase Rules Builder
Firestore security-rules builder — read / write / list / get matchers, claims-based access.
Supabase RLS Builder
Postgres RLS policy builder for Supabase — auth.uid() patterns, role checks, helpers.
IOC Extractor
Extract IPs, domains, hashes, URLs from text — common log noise filtered out.
Defang / Refang
Defang URLs and IOCs (hxxp://example[.]com) for safe sharing — and refang for reuse.
YARA Rule Builder
YARA rule scaffold — meta, strings (text, hex, regex), conditions with common patterns.
Sigma Rule Builder
Sigma detection rule scaffold — logsource, detection selection blocks, condition expression.
pcap Summary Paste
Describe a pcap from text summary (tshark output) — top talkers, protocols, anomalies.
Tor Exit Checker
Explain Tor exit-node identification approaches — published list, DNSBL, behavioral signals.
GeoIP Lookup Helper
Explain accuracy + privacy considerations of GeoIP — country vs city, mobile carriers, VPNs.
Breach Notification Letter
Customer comms template — what happened, what data, what actions, contact details.
Forensic Imaging Checklist
Preserve evidence checklist — write-blocker, hash-before-and-after, chain-of-custody log.
Chain of Custody Template
Chain of custody form — handler, time, action, hash, transfer record per evidence item.
Secret Naming Convention
Convention generator (env / vault path) — env / app / region / version segments.
Vault Policy Builder
HashiCorp Vault HCL policy builder — paths, capabilities, denied params, MFA hints.
AWS IAM Policy Builder
Visual IAM policy builder — Effect, Action, Resource, Condition with common patterns.
AWS IAM Policy Simulator Paste
Paste IAM policy + action + resource → likely allow / deny result with reasoning.
GCP IAM Binding Builder
GCP IAM binding builder — role, members (user / sa / group / domain), conditions.
Azure RBAC Role Builder
Azure RBAC custom-role builder — actions, notActions, dataActions, scopes.
.env Rotation Checklist
Rotation checklist for .env values — inventory, blast radius, deploy sequence, validation.
KMS Envelope Snippet
Pick cloud (AWS / GCP / Azure) → envelope encryption code snippets in your language.
GPG Key Policy Template
GPG key policy generator — algorithm, expiry, subkey usage, revocation, distribution.
age Key Management
age keyfile + recipients helper — generate keypair, manage recipients list, encrypt patterns.
SQL Window Function Builder
Visual window-function builder — PARTITION BY, ORDER BY, frame clause, with sample preview.
SQL CTE Refactor
Convert nested subqueries → readable CTEs (WITH … AS) with naming suggestions.
SQL Pivot Builder
Pivot / unpivot helper across dialects — CASE WHEN, CROSSTAB, PIVOT, FOR clause.
SQL Date Bucket Helper
Generate date_trunc / date_bin equivalents per dialect — Postgres, MySQL, BigQuery, MSSQL.
SQL Upsert Translator
INSERT … ON CONFLICT / MERGE / REPLACE per dialect — handle conflict targets, update sets.
SQL RLS Helper
RLS template per engine (Postgres, MSSQL, BigQuery) — policy expressions, role binding.
SQL Partition Planner
Partitioning strategy picker — range, list, hash, interval; sub-partition trade-offs.
SQL Index Recommender
Given a query + schema, suggest indexes — composite ordering, covering vs partial.
SQL Anti-Join Helper
Anti-join patterns per dialect — NOT EXISTS, LEFT JOIN … IS NULL, EXCEPT, NOT IN pitfalls.
SQL JSONB Helper
Postgres JSONB query helper — operators, GIN indexes, path expressions, common patterns.
SQL Full-Text Helper
Full-text search per engine — Postgres tsvector, MySQL FULLTEXT, MSSQL CONTAINS.
SQL Numeric Precision Checker
Pick NUMERIC precision and scale — for currency, latitudes, ratios; overflow estimator.
SQL Collation Helper
Explain collation choices — case sensitivity, accent sensitivity, ICU vs deterministic.
SQL Deadlock Explainer
Paste a deadlock graph (Postgres / MSSQL / MySQL) → cycle explanation, fix suggestions.
SQL EXPLAIN Plan Converter
Convert plans across dialects — Postgres ↔ MySQL ↔ SQL Server semantic mapping.
Mongo Aggregation Builder
Visual aggregation pipeline builder — $match, $group, $project, $lookup with preview.
Mongo Index Recommender
Recommend index from query — ESR rule (Equality / Sort / Range), partial vs sparse.
Mongo Schema Validator
JSON Schema validator builder for MongoDB — bsonType, required, enum, validation level.
DynamoDB Key Designer
Partition + sort key designer — access pattern → composite key, GSI overlay layout.
DynamoDB Query Builder
Query / scan helper — KeyConditionExpression, FilterExpression, projection, pagination.
Cassandra Data Model
Table design helper — partition key sizing, clustering columns, denormalisation patterns.
Redis Data Structure Picker
Pick the right Redis type — String, Hash, List, Set, ZSet, Stream — for your access pattern.
Redis Key Namespace
Key naming convention generator — env / app / type / id segments with TTL hints.
CouchDB Mango Builder
Mango query builder — selectors, sort, fields, use_index with preview JSON.
Firestore Query Helper
Composite-index helper — pick filters + ordering, generate firestore.indexes.json entries.
CSV Schema Validator
JSON Schema-style validation for CSV — frictionless-data inspired field types and constraints.
Data Profile Summary
Paste a sample → profile (nulls, distinct, types, min, max, sample values).
Data Quality Rules Builder
Great Expectations-style rule builder — column rules, table rules, severity tagging.
DQ Dimension Checklist
Completeness / accuracy / consistency / timeliness / validity / uniqueness checklist.
PII Detector
Heuristic PII flagging in text or columns — emails, phones, IDs, SSNs, IPs with confidence.
PHI Detector
Heuristic protected health info flagging — diagnoses, NPIs, medications, dates of treatment.
Outlier Finder
Statistical outlier helper — IQR, z-score, MAD with parameter tuning and visualisation.
Cardinality Estimator
HyperLogLog cardinality estimator — pick precision, estimate error margin, memory cost.
Bloom Filter Sizer
Bloom filter size / error tuner — n items, target false-positive rate → bits and hash count.
Sampling Method Picker
Pick stratified / reservoir / cluster / systematic sampling — by use case and data shape.
Airflow DAG Template
Minimal Airflow DAG scaffold — schedule, default_args, operators, dependencies, callbacks.
Dagster Asset Template
Dagster asset scaffold — @asset decorator, IO managers, partitions, sensor wiring.
Prefect Flow Template
Prefect flow scaffold — flow / task decorators, retries, deployment, work pool.
dbt Model Template
dbt model + test scaffold — config block, ref / source, schema yml, generic tests.
dbt YML Builder
Sources / models YML builder — descriptions, tests, freshness, columns, meta blocks.
Singer Tap Scaffold
Singer tap scaffold — discover / sync, schema messages, state, record / state messages.
Meltano YML Builder
Meltano project YML — extractors, loaders, transformers, jobs, schedules.
Flink Job Scaffold
Minimal Flink Java / Python scaffold — environment, source, sink, watermarks, checkpointing.
Spark Job Scaffold
Spark job scaffold — SparkSession, schema, transforms, partitioning, write modes.
NiFi Template Helper
NiFi processor sequence template — common ingestion patterns, attributes, expression language.
Kafka Topic Planner
Partitions / replication-factor / retention planner — throughput vs ordering trade-offs.
Kafka Consumer Group Helper
Explain rebalance protocols — eager vs cooperative-sticky, session.timeout, static membership.
Kafka ACL Builder
Kafka ACL builder — principal, resource, operation, host with kafka-acls.sh command output.
Kafka Schema Registry Helper
Subject naming + compatibility picker — TopicNameStrategy / RecordNameStrategy / Topic+Record.
Kafka SR Compat Checker
Paste two Avro schemas → compatibility verdict (BACKWARD / FORWARD / FULL / TRANSITIVE).
Redpanda Config Helper
Redpanda config helper — kafka-api, admin-api, rpc, seed servers, tiered storage.
NATS Subject Designer
NATS subject hierarchy designer — wildcards, request-reply patterns, JetStream subjects.
Pulsar Topic Helper
Pulsar topic naming helper — persistent vs non-persistent, tenant / namespace / topic.
CDC Strategy Picker
Debezium / log-based / trigger-based / query-based decision tree — pros and gotchas.
Event Payload Shape
Event-envelope shape generator — CloudEvents v1, custom envelope, idempotency-key contract.
Avro Schema Builder
Visual Avro schema builder — primitives, records, unions, defaults, namespaces.
Protobuf Schema Builder
Visual proto3 builder — messages, enums, services, options, package, imports.
Protobuf Style Linter
Proto style checker — naming (PascalCase / lower_snake_case), file layout, reserved fields.
FlatBuffers Schema Builder
FlatBuffers schema scaffold — tables, structs, root_type, namespaces, attributes.
Thrift Schema Builder
Thrift IDL builder — structs, services, enums, namespaces, optional / required fields.
Cap'n Proto Schema
Cap'n Proto schema scaffold — structs, unions, generic params, capability fields.
Arrow Schema Builder
Apache Arrow schema builder — primitives, lists, structs, dictionary encoding picker.
Parquet Schema Helper
Parquet schema helper + compression picker — row group size, page size, encoding.
Delta Lake Table Helper
Delta table properties generator — partition columns, vacuum retention, log retention.
Iceberg Table Helper
Apache Iceberg table props generator — partition spec, sort order, compression, format-version.
OpenAPI Style Linter
Spectral-style ruleset preview — operation IDs, error response coverage, naming.
OpenAPI Version Bumper
Semver bump suggester from a diff — major (breaking), minor (additive), patch (docs).
OpenAPI Deprecation Planner
Plan a deprecation timeline — Deprecation header, Sunset header, comms timeline.
OpenAPI Mock Server Snippet
Pick a tool (Prism, Mockoon, msw) → mock server command line + config.
OpenAPI Coverage Tracker
Track which endpoints have tests — paste spec + test suite, get coverage matrix.
API Changelog Builder
Generate API changelog from a diff — Added, Changed, Deprecated, Removed sections.
API Rate Limit Planner
Design rate-limit tiers — fixed window, sliding window, token bucket; per-key vs per-IP.
API Pagination Picker
Offset / cursor / keyset / page-token decision tree with sample request / response shapes.
API Error Shape Builder
RFC 9457 problem-details builder — type, title, status, detail, instance, extensions.
API Idempotency Key Helper
Idempotency-key strategy — key format, store, TTL, conflict response, replay handling.
API Webhook Spec Builder
Webhook contract + retries — signed payloads, retry schedule, dead-letter, replay.
API Versioning Strategy
URI / header / accept versioning picker — pros, gotchas, rollout cost per approach.
API Deprecation Header Builder
Generate Deprecation / Sunset headers — date format, link relations, comms windows.
API RFC 7807 Builder
Problem Details JSON builder (legacy RFC 7807) — useful for older API contracts.
API Style Guide Template
Generate a team API style guide — naming, errors, pagination, versioning, security.
GraphQL Schema Linter
Schema lint preview — naming conventions, deprecation hygiene, descriptions, input nesting.
GraphQL Persisted Query Helper
Persisted-query helper — APQ flow, hash algorithm, registry options, CDN caching.
GraphQL Federation Planner
Subgraph composition planner — entity ownership, @key directives, shared types.
GraphQL DataLoader Helper
DataLoader pattern code generator — batch + cache resolvers per entity type.
GraphQL Cost Analysis
Query-cost analysis builder — assign costs per field, compute query depth and complexity.
GraphQL Relay Cursor Helper
Relay cursor encode / decode — base64-encoded compound cursors, stable ordering helpers.
GraphQL Subscription Helper
Pick transport (SSE / WebSocket / graphql-ws) + sample server / client snippets.
GraphQL Input Validator
Input validation pattern helper — directives vs custom scalars vs runtime checks.
GraphQL Error Shape
GraphQL error extension builder — extensions.code, http status, path, locations, classification.
GraphQL Fragment Merger
Merge / dedupe fragments across queries — collapse identical selection sets.
Data Lineage Template
Lineage diagram template (OpenLineage) — datasets, jobs, runs, parent-child relations.
Metric Definition Template
Metric definition contract — owner, formula, window, dimensions, freshness, SLO.
DQ Incident Template
Data-quality incident template — symptoms, scope, root cause, mitigation, prevention.
Data Contract Builder
Data Contract YAML scaffold — producer, consumer, schema, SLAs, terms, versioning.
Data Product README
Data product README scaffold — purpose, owner, SLAs, schema, examples, change policy.
Column-Level Audit Template
Audit-log shape per column — change reason, actor, before/after value, timestamp.
Data Retention Policy
Retention policy generator — data class, default TTL, legal hold, deletion verification.
GDPR Erasure Runbook
Automated erasure runbook — request intake, fan-out per system, completion attestation.
PII Masking Strategy
Masking strategies per column type — hash, tokenize, redact, format-preserving encryption.
Data Classification Matrix
Public / internal / confidential / secret matrix — examples, controls, access scope per tier.
AWS Cost Rough Estimator
Rough monthly AWS cost per service — EC2, RDS, S3, Lambda, NAT — quick budget sanity check.
AWS Savings Plan Helper
Savings Plans vs Reserved Instances decision — commitment level, term, payment options.
Azure Pricing Helper
Azure rough estimator — VM, App Service, Storage, SQL Database with reserved capacity.
GCP Pricing Helper
GCP rough estimator — Compute Engine, Cloud SQL, GCS, with sustained-use and CUDs.
Egress Cost Checker
Egress cost calculator across clouds — internet, inter-region, inter-AZ, CDN egress tiers.
S3 Storage Class Picker
Pick S3 class by access pattern — Standard, IA, Intelligent Tiering, Glacier variants.
Lambda Memory Tuner
Lambda memory ↔ CPU tuning — sweet-spot calculator for your function profile.
CDN Cost Estimator
CDN cost rough estimator — CloudFront / Cloudflare / Fastly / Bunny across geographies.
RDS Instance Picker
Pick an RDS instance class from workload — vCPU, memory, IOPS, network requirements.
DynamoDB Capacity Estimator
On-demand vs provisioned helper — RCU / WCU calc, autoscaling, cost crossover point.
cloud-init Builder
Visual cloud-init YAML builder — users, write_files, runcmd, package, ssh keys.
Terraform State Strategy
State backend picker + locking — S3+DDB, GCS, Azure, Terraform Cloud, file isolation.
Terraform Import Planner
Generate import blocks from a list of existing resources — addresses, IDs, providers.
Pulumi Stack Template
Pulumi stack scaffold (TS / Python / Go) — config, secrets, providers, sample resource.
Crossplane Composition Template
Crossplane composition scaffold — XR, Composition, ManagedResources, function-pipeline.
ArgoCD Application Template
ArgoCD Application YAML — repo, path, destination, sync policy, ignore differences.
Flux Kustomization Template
Flux Kustomization YAML — interval, source, dependencies, healthChecks, postBuild.
Kustomize Overlay Builder
Kustomize overlay scaffold — base + env overlay, patches, configMapGenerator, replicas.
Helm Values Merge
Preview values.yaml merge across files — base + env + secret-merge with resolved view.
Helm Chart Lint Preview
Lint rules preview for a Helm chart — common pitfalls, deprecation warnings.
K8s ResourceQuotas Planner
Quotas from sample workloads — sum requests / limits, headroom recommendations.
K8s NetworkPolicy Tester
Test policies against pods — given labels + namespaces, predict ingress / egress decisions.
K8s ClusterRole Builder
Visual ClusterRole builder — apiGroups, resources, verbs, resourceNames, nonResourceURLs.
K8s PDB Helper
PodDisruptionBudget helper — minAvailable vs maxUnavailable, integer vs percentage.
K8s PVC StorageClass Picker
Pick a storage class — gp3 / io2 / Premium SSD / pd-ssd by access mode and IOPS.
Docker Multi-Stage Helper
Multi-stage Dockerfile pattern picker — build / test / run stages, cache mounts, distroless.
Docker Bake Template
docker buildx bake template — group + target, cache_from / cache_to, multi-platform.
Docker Network Mode Picker
bridge / host / none / overlay decision — per workload type with port-publishing trade-offs.
OCI Image Spec Helper
OCI image manifest helper — annotations, layers, history, config object reference.
Image Vulnerability Summary
Paste Trivy / Grype JSON → summary by severity, layer, fixed-version, CVE list.
Wasm Runtime Picker
Pick wasmtime / wasmer / wasmedge — by features, perf, language bindings, WASI support.
Wasm Component Helper
WIT bindings template — interface, world, exports / imports, type aliases.
containerd Config Helper
containerd config snippet — registries, runtime classes, snapshotter, plugins block.
nerdctl Cheatsheet
nerdctl ↔ docker translator — run, build, compose, network commands side by side.
Podman Quadlet Template
Quadlet unit template — Container, Pod, Network, Volume types with systemd integration.
iOS Bundle ID Helper
Bundle ID naming + reverse-DNS — common conventions, target / extension suffixes.
iOS Info.plist Builder
Common Info.plist keys helper — usage descriptions, URL types, supported orientations.
iOS Entitlements Helper
Entitlements file builder — App Groups, Keychain Sharing, Push, Associated Domains.
Android Manifest Builder
AndroidManifest scaffold helper — application, activities, intent filters, permissions.
Android Permission Explainer
Declared permissions explainer — runtime vs install-time, dangerous categories, alternatives.
Android ProGuard Rule Helper
Common ProGuard / R8 rules — keep rules for Gson, Retrofit, Compose, Kotlin reflection.
Android strings.xml Builder
strings.xml builder + plurals — escape rules, formatted strings, resource arrays.
Apple Localizable.strings
Localizable.strings + .stringsdict format helper — plural rules, format specifiers.
Apple stringsdict Builder
Pluralization dictionary — NSStringFormatSpecTypeKey, plural categories per locale.
React Native Version Helper
Version + build number helper — sync versionName / versionCode + CFBundleVersion.
Expo Config Helper
app.json / app.config.ts builder — name, slug, scheme, plugins, assetBundlePatterns.
Flutter pubspec Builder
pubspec.yaml builder — environment, dependencies, dev_dependencies, flutter section.
Kotlin Multiplatform Template
KMP module scaffold — common / android / ios source sets, expect / actual examples.
App Icon Set Helper
Produce iOS / Android icon set descriptors — sizes, idioms, scales, adaptive icon layers.
Mobile Deeplink Builder
Universal links + intent filters — Apple AASA, Android assetlinks, fallback URL.
GPIO Pin Mapper
Pi / ESP32 pin reference — physical pin → GPIO + alt functions, voltage levels.
I2C Address Finder
Common I2C device addresses — sensors, displays, EEPROMs, conflict checker.
SPI Mode Picker
SPI mode picker — CPOL / CPHA combinations explained with chip-side requirements.
UART Baud Helper
Baud-rate / error helper — given clock, target baud, compute divisor and error percentage.
PWM Duty Cycle Calculator
Duty-cycle / freq → register values — for common MCUs (ESP32, STM32, RP2040, AVR).
CRC Calculator
CRC8 / CRC16 / CRC32 with picker — common polys (CCITT, Modbus, IBM, Castagnoli).
Modbus Frame Builder
Modbus RTU / TCP frame builder — function codes, address, quantity, CRC / MBAP.
MQTT Topic Designer
Topic hierarchy designer — wildcards, retained messages, QoS choice, ACL patterns.
CoAP Message Builder
CoAP message helper — type, code, message-id, token, options, payload.
LoRaWAN Payload Decoder
LoRaWAN payload decoder template — pick a device class + decode common Cayenne LPP fields.
FFmpeg Command Builder
Visual ffmpeg command builder — input, filters, codec, mux, hardware acceleration.
ImageMagick Command Builder
ImageMagick command builder — convert, resize, format, quality, common filter chains.
WebRTC Config Helper
Pick STUN / TURN config — public STUN list, TURN provider snippets, iceTransportPolicy.
SRT ↔ VTT Converter
Caption format converter — preserve cues, styling, timing across SRT, VTT, TTML.
Audio Bitrate Picker
Pick bitrate per use case — voice, music, podcast, archival; codec-aware recommendations.
Video Codec Picker
Pick codec per platform — H.264 / H.265 / AV1 / VP9 with browser, OS, device matrix.
DASH / HLS Helper
Manifest snippet generator — DASH MPD or HLS m3u8 with adaptive variants.
Loudness Normalization Helper
LUFS targets per platform — Spotify, YouTube, Apple, broadcast EBU R128.
Image Color Space Helper
sRGB / Display P3 / Rec.2020 helper — when to use each, browser support, ICC profile notes.
EXIF Fields Explainer
EXIF field reference — IFD0, ExifIFD, GPSIFD with common tag IDs and meanings.
Tilemap Helper
Tile size / map size calculator — total memory, chunking strategy, render bounds.
Sprite Sheet Packer
Describe layout → output coordinates JSON — uniform grid or atlas style.
Nine-Slice Helper
9-slice insets helper — preview corners, edges, center for resizable UI panels.
Easing Function Picker
Easing curves with code per language — JS, CSS, Swift, Kotlin, Unity, Godot.
Bezier Editor Helper
Cubic-bezier helper for animation — visual editor, preset curves, copy as CSS / JS.
Dice Probability Calculator
Common dice probabilities — d4 / d6 / d20, sum distributions, advantage / disadvantage.
Loot Table Builder
Loot table design tool — weighted entries, rarity tiers, drop chance preview.
ECS Cheatsheet
Entity / Component / System pattern reference — common queries, archetypes, scheduling.
glTF Fields Explainer
glTF top-level fields reference — scenes, nodes, meshes, materials, accessors, buffers.
WebGPU Shader Snippet
WGSL snippet starter — compute, vertex, fragment shaders with binding layout examples.
Cron Explainer Pro
Natural-language explanation per dialect — Unix, Quartz, Spring, AWS EventBridge.
Cron Next Runs
Show next N runs for a cron expression — timezone-aware, DST-handling preview.
Business Days Between
Biz-day diff with regional holidays — pick locale, exclude weekends + national holidays.
ISO Week Helper
ISO week-date helper — convert between Gregorian and ISO 8601 week-date format.
Timezone DST Explainer
Explain DST jumps in a year — spring-forward, fall-back instants per IANA zone.
Meeting Poll Builder
Generate doodle-style poll text — proposed slots, timezones, RSVP format.
Gantt Text Builder
Render Mermaid Gantt from a task list — sections, dates, dependencies, milestones.
Sprint Cadence Planner
Sprint dates calc — start / end / review / retro days for N sprints with holidays.
Pomodoro Schedule Builder
Pomodoro session builder — work / short-break / long-break cycles, total time output.
RRULE Builder
RFC 5545 RRULE builder — FREQ, INTERVAL, BYDAY, BYMONTHDAY with iCal preview.
ASCII Banner Builder
figlet-style banner generator — pick font, alignment, width, copy-as-text output.
man Page Template
Minimal man-page scaffold — NAME, SYNOPSIS, DESCRIPTION, OPTIONS, EXAMPLES sections.
nroff Cheatsheet
nroff / troff macros quick reference — .TH, .SH, .B, .I, hyperlinks in man pages.
Vim Keybinding Cheat
Vim leader-key cheat builder — define your map, render reference card per mode.
.editorconfig Validator
Validate .editorconfig — duplicate sections, unknown properties, glob conflicts.
direnv .envrc Template
.envrc template — PATH_add, layout helpers, dotenv, source_url with hash pinning.
mise (asdf) Config Template
mise / asdf config template — runtime versions, plugins, global vs local config.
Nix Flake Template
Minimal flake.nix template — inputs, outputs, devShell, packages, NixOS module skeleton.
Homebrew Formula Template
Formula scaffold — class, url, sha256, depends_on, install block, test block.
winget Manifest Template
winget manifest scaffold — version, installer, locale YAMLs with required fields.