Skip to main content

Home About Statistics Experience Skills Projects Tools Achievements Contact

Back to portfolio

Regex Tester Lorem Ipsum Generator Markdown Preview HTML Entity Encoder / Decoder Diff Checker String Case Converter Text Counter Slug Generator Text Sorter String Escaper Text Reverser Whitespace Cleaner Number to Words Morse Code Translator Regex Pattern Library Markdown Reference Hex Editor Base Converter Byte Calculator Emoji Picker Text Diff & Merge Readability Analyzer Image to ASCII Art HTML to Markdown Markdown to HTML Markdown to PDF Release Notes Formatter Contributing.md Builder README.md Generator Code of Conduct Generator Issue Template Builder PR Template Builder Migration Guide Builder Architecture Decision Record Security Policy Generator Text to Speech Preview Word Frequency Counter Text to Handwriting Text Encryption Tool Text Truncator Multiline to Array Converter Duplicate Line Remover Column Extractor Find and Replace Pro Sentence Case Converter Text Template Engine Line Number Adder Text to NATO Phonetic Text Stats Markdown Slides Changelog Parser Frontmatter Editor Text to Table CSV Filter Multilang Preview Meeting Notes Gen Text Redact Reading Time ASCII Banner Builder

JSON Formatter & Validator JSON ↔ YAML Converter JSON ↔ CSV Converter JSON ↔ XML Converter CSV Viewer XML Formatter JSONPath Evaluator JSON Schema Validator JSON to TypeScript Types YAML Reference JSON Diff / Patch JSON Flatten JSON Patch Generator JSON Key Sorter CSV to SQL YAML Diff TSV to CSV Converter CSV to Markdown Table Protobuf to JSON TOML to JSON Properties to YAML XML to JSON (Advanced)JSON to GraphQL Schema Plist to JSON CSV Schema Validator Data Profile Summary Data Quality Rules Builder DQ Dimension Checklist Outlier Finder Cardinality Estimator Bloom Filter Sizer Sampling Method Picker Avro Schema Builder Protobuf Schema Builder Protobuf Style Linter FlatBuffers Schema Builder Thrift Schema Builder Cap'n Proto Schema Arrow Schema Builder Parquet Schema Helper Delta Lake Table Helper Iceberg Table Helper OpenAPI Style Linter OpenAPI Version Bumper OpenAPI Deprecation Planner OpenAPI Mock Server Snippet OpenAPI Coverage Tracker API Changelog Builder API Rate Limit Planner API Pagination Picker API Error Shape Builder API Idempotency Key Helper API Webhook Spec Builder API Versioning Strategy API Deprecation Header Builder API RFC 7807 Builder API Style Guide Template GraphQL Schema Linter GraphQL Persisted Query Helper GraphQL Federation Planner GraphQL DataLoader Helper GraphQL Cost Analysis GraphQL Relay Cursor Helper GraphQL Subscription Helper GraphQL Input Validator GraphQL Error Shape GraphQL Fragment Merger

Hash Generator JWT Decoder Password Generator Password Strength Checker HMAC Generator AES Cipher TOTP / 2FA Generator CSP Header Builder SSL Certificate Decoder JWT Generator CORS Policy Tester OAuth 2.0 Flow Debugger IBAN Validator SSH Key Generator Self-Signed Certificate DKIM Key Generator OWASP Security Headers SRI Hash Generator PGP Key Viewer RSA Cipher ChaCha20-Poly1305 Digital Signatures File Encryptor PGP Cipher ECDH Key Exchange Key Derivation Triple DES (3DES)Blowfish Cipher Envelope Encryption Steganography Firewall Rule Generator JWT Inspector SQL Injection Tester SSL/TLS Certificate Decoder TLS Version Checker Privacy Policy Generator DSGVO Checklist Secret Scanner Security Headers Tester Password Hash Verifier Certificate Chain Validator Entropy Analyzer CSP Report Parser Cookie Security Analyzer CORS Policy Builder API Key Generator Dependency Vulnerability Checker Permission Calculator Secure Random Generator OAuth Scope Builder Log Redactor Log Anonymizer Replay HAR Redactor TLS Handshake Explainer Port Knock Helper Canvas Fingerprint Checker STRIDE Analyzer LINDDUN Analyzer PASTA Stage Tracker Attack Tree Builder Kill Chain Mapper DREAD Scorer CVSS Calculator Risk Matrix Builder Data Flow Diagram Builder Trust Boundary Mapper Asset Inventory Template Attack Surface Mapper OWASP ASVS Checker CVE Search OSV Query Builder CycloneDX SBOM Builder SPDX SBOM Builder SBOM Diff VEX Document Builder SLSA Attestation Builder Sigstore Cosign Snippet Dep License Compatibility License NOTICE File Generator Dep Pin Strategy npm audit Summarizer pip-audit Summarizer cargo-audit Summarizer CSRF Token Flow XSS Payload Explainer XSS Context Checker Prototype Pollution Checker SSRF Rule Builder Open Redirect Checker Clickjacking Helper CORS Debug Walkthrough Cookie Security Audit SameSite Explainer Auth Flow Picker OIDC ID Token Validator PKCE Code Checker WebAuthn Flow Explainer Passkey Readiness Check GDPR RoPA Builder GDPR DPA Checklist GDPR DSAR Template GDPR Breach Notification DPIA Template CCPA / CPRA Checklist HIPAA Checklist PCI DSS SAQ Helper ISO 27001 Control Mapper SOC 2 Evidence Tracker NIST CSF Mapper CIS Benchmark Checklist TISAX Readiness Check NIS2 Readiness Check DORA Readiness Check Key Rotation Planner Secret Lifetime Calculator RBAC Matrix Builder ABAC Policy Builder Cedar Policy Builder OPA Rego Builder Casbin Model Builder Keycloak Realm Template Auth0 Action Template Cognito Trigger Template Firebase Rules Builder Supabase RLS Builder IOC Extractor Defang / Refang YARA Rule Builder Sigma Rule Builder pcap Summary Paste Tor Exit Checker GeoIP Lookup Helper Breach Notification Letter Forensic Imaging Checklist Chain of Custody Template Secret Naming Convention Vault Policy Builder AWS IAM Policy Builder AWS IAM Policy Simulator Paste GCP IAM Binding Builder Azure RBAC Role Builder .env Rotation Checklist KMS Envelope Snippet GPG Key Policy Template age Key Management PII Detector PHI Detector Data Retention Policy GDPR Erasure Runbook PII Masking Strategy Data Classification Matrix Image Vulnerability Summary

URL Encoder / Decoder URI Parser Cron Expression Parser HTTP Status Codes MIME Type Lookup User-Agent Parser IP / CIDR Calculator DNS Record Reference Port Number Reference HTTP Header Reference nginx Reference OpenAPI / Swagger Viewer HTTP Methods Reference Robots.txt Generator .htaccess Generator Gzip Estimator Image to Base64 Data URI Generator Image Resizer ICO / Favicon Generator Meta Tag Generator Open Graph Preview UTM Link Builder Cookie Parser CSP Evaluator REST API Client GraphQL Explorer API Response Validator Mock API Builder HTTP Load Tester Rate Limit Calculator Response Time Tester Form Validator Tester OpenAPI Diff Cookie Inspector Status Page Builder API Changelog Diff WCAG Checker Semantic HTML Advisor Keyboard Navigation Tester Focus Order Visualiser Accessible Form Builder Screen Reader Preview Heading Structure Checker Language Attribute Checker Landmark Validator Touch Target Checker Motion Sensitivity Preview Image Compressor Image Format Converter Image Cropper Image Watermark Tool Image Metadata Viewer Image Metadata Stripper GIF Frame Extractor Image Redact Tool Subnet Calculator Bandwidth Calculator Webhook Tester TCP Flag Calculator MAC Address Lookup IPv6 Expander/Compressor CIDR Overlap Checker Ping Sweep Planner Network MTU Calculator URL Shortener Expander WHOIS Formatter HAR Summarizer DNS Trace Walker WHOIS History Diff HTTP/2 Frame Viewer WebSocket Frame Decoder Web Vitals Explainer CLS Source Finder INP Explainer Chrome Storage Inspector Service Worker Inspector Permissions API Tester Clipboard Event Debugger IntersectionObserver Builder Pointer Event Debugger Gamepad Mapper MediaDevices Enumerator WebGL Info Polyfill Impact Checker Browserslist Resolver Lighthouse Score Explainer Core Web Vitals Budget React Render Budget Vue Perf Marks Svelte Component Profiler Angular Change-Detection Tracer DOM Mutation Counter Paint Flash Explainer Request Waterfall Builder JS Event Loop Trace CPU Throttle Impact Network Throttle Impact Frame Budget Tracker Long Task Locator Memory Leak Checklist Responsive Image srcset Image Quality vs Size LQIP Generator BlurHash Generator Video Poster Extractor

WebP vs AVIF Helper Image CDN URL Builder OG Image Template Favicon Budget Builder ARIA Pattern Picker ARIA Live Region Builder Focus Trap Tester Skip Link Builder Reduced Motion Checker Forced Colors Tester Alt Text Checklist Text Resize Tester Color Contrast Batch Caption Format Converter Next.js Route Planner Next.js Cache Strategy Remix Loader / Action Helper Astro Island Helper SvelteKit load Helper Nuxt Layer Planner Solid createResource Helper Qwik Resumability Checker HTMX Pattern Picker AlpineJS Cheatsheet FFmpeg Command Builder ImageMagick Command Builder WebRTC Config Helper SRT ↔ VTT Converter Audio Bitrate Picker Video Codec Picker DASH / HLS Helper Loudness Normalization Helper

SQL Formatter CSS Minifier JavaScript Minifier HTML Formatter SVG Optimizer Code Screenshot SQL Reference GraphQL Formatter TOML Formatter INI ⇔ JSON Converter JSON-LD / Schema.org Editor HCL (Terraform) Formatter YAML Formatter Markdown Table Generator Python Formatter PHP Formatter C# Formatter SQL Formatter / Minifier SQL Query Builder SQL vs NoSQL Comparison Schema Designer Migration Generator ER Diagram Generator SQL Explain Index Advisor DB Seed Generator SQL Transpiler GraphQL Schema Builder Prisma Schema Generator MongoDB Query Builder SQL Diff SQL to Prisma Schema OpenAPI to TypeScript JSDoc/TSDoc Generator Changelog Generator License Header Generator Dependency Table Generator API Endpoint Catalogue AST Explorer Dependency Graph Code Complexity Code Line Counter Dead Code Finder Import Sorter Env Diff Package.json Gen TSConfig Builder ESLint Config Gen Prettier Config Gen VS Code Settings Gen VS Code Copilot Settings Gen Copilot Instructions Lab XPath Tester Stack Trace Symbolizer Sentry Event Decoder Node.js Stack Cleaner JS Source Map Locator TS Error Explainer ESLint Rule Explainer Webpack Error Decoder Vite Error Decoder Rust Panic Formatter Python Traceback Collapser Java Stack Trimmer .NET Stack Formatter Go Panic Decoder Kotlin Coroutine Trace Swift Crash Symbolicator Crash Report Diff Userscript Template React Profiler Summary Barrel File Detector Circular Import Finder Dynamic Import Planner tsconfig paths Builder tsconfig extends Merger SQL Window Function Builder SQL CTE Refactor SQL Pivot Builder SQL Date Bucket Helper SQL Upsert Translator SQL RLS Helper SQL Partition Planner SQL Index Recommender SQL Anti-Join Helper SQL JSONB Helper SQL Full-Text Helper SQL Numeric Precision Checker SQL Collation Helper SQL Deadlock Explainer SQL EXPLAIN Plan Converter Mongo Aggregation Builder Mongo Index Recommender Mongo Schema Validator DynamoDB Key Designer DynamoDB Query Builder Cassandra Data Model Redis Data Structure Picker Redis Key Namespace CouchDB Mango Builder Firestore Query Helper iOS Bundle ID Helper iOS Info.plist Builder iOS Entitlements Helper Android Manifest Builder Android Permission Explainer Android ProGuard Rule Helper Android strings.xml Builder Apple Localizable.strings Apple stringsdict Builder React Native Version Helper Expo Config Helper Flutter pubspec Builder Kotlin Multiplatform Template Mobile Deeplink Builder WebGPU Shader Snippet

Color Converter Color Palette Generator CSS Gradient Builder Box Shadow Generator Border Radius Generator Flexbox Playground CSS Grid Playground CSS Animation Builder Tailwind ↔ CSS Converter Spacing Scale Generator Glassmorphism Generator Favicon Generator Placeholder Image Generator Neumorphism Generator Clip-Path Generator CSS Filter Generator Aspect Ratio Calculator Font Pair Explorer Typography Scale Scrollbar Styler CSS Triangle Generator Contrast Grid Dyslexia Preview SVG Path Editor Sprite Sheet Generator Image Diff Viewer Color Picker from Image Pixel Art Editor Color Palette Extractor Screenshot Mockup Generator Badge Generator CSS Variable Gen Media Query Builder Aspect Ratio Box SVG to React Color Token Gen Icon Set Preview CSS Reset Gen Keyframe Builder Tailwind Palette Gen Figma Token Gen CSS Specificity Calculator CSS Cascade Explainer CSS @layer Builder Container Query Builder CSS Subgrid Helper CSS Anchor Positioning CSS View Transitions Scroll-Driven Animation CSS color-mix() Builder CSS Relative Color CSS Nesting Validator CSS Custom Prop Fallback CSS Typed OM Snippet CSS Houdini Paint Worklet Anchor Overlap Finder Design Token Lint Design Token Diff Design Token Converter Radix Scale Builder OKLCH Scale Builder Golden Ratio Grid Eight-Point Grid Checker Breakpoint Set Helper vh / vw Calculator Safe Area Inset Helper PostCSS Config Builder App Icon Set Helper Image Color Space Helper Tilemap Helper Sprite Sheet Packer Nine-Slice Helper Easing Function Picker Bezier Editor Helper Loot Table Builder

AI Code ExplainerComing Soon AI Regex GeneratorComing Soon AI Commit MessageComing Soon AI SQL GeneratorComing Soon AI Code ConverterComing Soon AI Test GeneratorComing Soon AI Mock DataComing Soon AI CSS GeneratorComing Soon AI Code ReviewComing Soon AI API DocsComing Soon AI API SpecComing Soon AI ChangelogComing Soon AI Cron GeneratorComing Soon AI DockerfileComing Soon AI Embedding VisComing Soon AI Error ExplainerComing Soon AI GitHub ActionsComing Soon AI README GeneratorComing Soon AI Shell CommandComing Soon Alt Text GeneratorComing Soon AI Prompt BuilderComing Soon AI TokenizerComing Soon AI Training ConfigComing Soon AI Cost EstimatorComing Soon AI Model Card GenComing Soon AI Confusion MatrixComing Soon AI Data LabelerComing Soon AI Feature ImportanceComing Soon AI Bias CheckComing Soon AI Accessibility FixerComing Soon AI Comment GeneratorComing Soon AI Config MigratorComing Soon AI Dependency AdvisorComing Soon AI Git Diff SummarizerComing Soon AI .env GeneratorComing Soon AI Performance AdvisorComing Soon AI PR Description WriterComing Soon AI Database Query ExplainerComing Soon AI Refactor SuggestionsComing Soon AI Regex ExplainerComing Soon AI Security ReviewerComing Soon AI Type GeneratorComing Soon AI Variable NamerComing Soon AI Docker Compose GeneratorComing Soon AI Terraform GeneratorComing Soon AI Kubernetes YAML GeneratorComing Soon AI Nginx Config GeneratorComing Soon AI Helm Chart GeneratorComing Soon AI Makefile GeneratorComing Soon AI GraphQL Schema GeneratorComing Soon AI JSON Schema GeneratorComing Soon AI Database Schema GeneratorComing Soon AI Prisma Schema GeneratorComing Soon AI Design Pattern SuggesterComing Soon AI .htaccess GeneratorComing Soon AI CORS Policy GeneratorComing Soon AI Release Notes GeneratorComing Soon AI .gitignore GeneratorComing Soon AI CSP GeneratorComing Soon AI SEO Meta Tag GeneratorComing Soon AI Email Template GeneratorComing Soon AI systemd Unit GeneratorComing Soon AI Test Data GeneratorComing Soon AI API Client GeneratorComing Soon AI robots.txt GeneratorComing Soon AI JSON-LD GeneratorComing Soon AI CI/CD Pipeline GeneratorComing Soon AI Workflow GeneratorComing Soon

Crypto Unit Converter Crypto Address Validator BIP39 Mnemonic Tool Merkle Tree Builder EVM Function Selector Blockchain Explorer Links ABI Encoder HD Wallet Explorer Solidity Formatter Gas Estimator DeFi Calculator Blockchain Timestamp Multisig Builder NFT Metadata Generator Smart Contract Audit Transaction Decoder ZK Proof Gen Token Standard Ref PQC Algorithm Picker Kyber / ML-KEM Explainer Dilithium / ML-DSA Explainer Falcon Signature Explainer Argon2 Param Tuner scrypt Param Tuner PBKDF2 Iteration Helper Entropy Source Checker

UUID Generator Timestamp Converter QR Code Generator Fake Data Generator Random Number Generator Unit Converter curl Command Converter Email Address Validator Phone Number Formatter Semver Range Calculator Contrast Checker Colour Blind Simulator Timezone Converter Date Calculator Working Days Calculator Epoch Batch Converter Workflow Builder License Picker Barcode Generator Scientific Calculator Matrix Calculator Statistics Calculator Percentage Calculator Big Number Calculator Boolean Algebra Unit Converter Pro Complex Number Calculator Equation Solver Sequence Finder Prime Checker GCD / LCM Calculator Probability Calculator Graph Plotter Ratio Calculator Test Data Generator Regex Test Runner JSON Schema Generator Smoke Test Generator QR Code Reader K8s Validator File Hash Color Name Lookup Timezone Meeting Uptime Calculator Incident Response Gen Postmortem Gen Runbook Gen Feature Flag Gen A/B Test Calc Dev Typing Test Bug Hunter Regex Golf HTTP Status Quiz Code Output Git Speedrun Reaction Time Trace ID Generator Package Size Estimator Import Cost Checker Tree Shake Checker Webpack Stats Summarizer Vite / Rollup Stats esbuild Metafile Reader Bundle Budget Tracker Legacy Target Helper package.json bin Builder npm exports Builder package.json engines Builder Monorepo Deps Graph pnpm Overrides Helper Yarn Resolutions Helper Peer Dependencies Validator Node Engines Resolver .swcrc Builder Babel preset-env Helper Rollup Config Builder Vite Plugin Template .editorconfig Validator direnv .envrc Template mise (asdf) Config Template Nix Flake Template Homebrew Formula Template winget Manifest Template

chmod Calculator Git Command Reference Docker Command Reference PowerShell Reference Bash Reference Exit Code Reference Linux Signal Reference Environment Variable Reference kubectl Command Reference .gitignore Reference Terraform Reference GitHub Actions Reference Helm Chart Reference Dockerfile Reference Docker Compose Reference systemd Reference Makefile Reference CI Environment Variables Env Parser Regex Explainer Cron Builder Nginx Config Generator Docker Compose Generator Kubernetes Manifest Generator Connection String Builder Redis Command Builder Crontab to Systemd Timer Nginx to Caddy Env to Docker Compose Docker Compose to K8s Branch Name Generator Conventional Commit Builder Git Rebase Visualizer Git Diff Stats Analyzer .gitattributes Builder Git Alias Generator Git Hook Generator Merge Conflict Resolver Git Log Formatter Cherry Pick Planner Monorepo Path Filter Network Policy Builder Load Balancer Config Gen Proxy Config Generator Ansible Playbook Generator Terraform Module Scaffold GitHub Actions Workflow Builder Systemd Service Generator Vagrant File Generator AWS CloudFormation Scaffold Pulumi Config Generator GitLab CI/CD Generator Azure DevOps Pipeline Gen Jenkins Pipeline Generator Dependabot Config Builder Pre-commit Config Builder Renovate Config Builder EditorConfig Generator Log Pattern Extractor Log Level Rewriter Log Frequency Heatmap journalctl Filter Builder Apache Log Parser nginx Log Parser CloudWatch Insights Builder Loki LogQL Builder Splunk SPL Builder Elastic KQL Builder OTLP Trace Decoder Jaeger Trace Viewer Flamegraph Viewer pprof Text Viewer Chrome trace.json Viewer Correlation ID Linker Prometheus Query Builder Prometheus Recording Rules Prometheus Alert Rules Grafana Dashboard Validator Grafana Panel Template StatsD Client Snippet Metric Name Linter SLO Budget Calculator Apdex Calculator Percentile From Histogram Rate From Counter Alert Route Tester PagerDuty Event Tester Opsgenie Payload Builder Slack Incident Template tcpdump Filter Builder Wireshark Display Filter mitmproxy Script Generator MTU Path Tester SSH Config Builder TCP State Explainer QUIC Frame Decoder top Output Parser ps Output Parser lsof Output Parser netstat Parser iostat Explainer vmstat Explainer dmesg Decoder journalctl Tree strace Summarizer perf stat Summarizer Incident Timeline Builder Five Whys Builder SLO Policy Builder Error Budget Policy Generator Chaos Experiment Template Runbook Checklist Generator On-call Handover Template Severity Matrix Builder GameDay Script Builder Comms Update Template Airflow DAG Template Dagster Asset Template Prefect Flow Template dbt Model Template dbt YML Builder Singer Tap Scaffold Meltano YML Builder Flink Job Scaffold Spark Job Scaffold NiFi Template Helper Kafka Topic Planner Kafka Consumer Group Helper Kafka ACL Builder Kafka Schema Registry Helper Kafka SR Compat Checker Redpanda Config Helper NATS Subject Designer Pulsar Topic Helper CDC Strategy Picker Event Payload Shape Data Lineage Template Metric Definition Template DQ Incident Template Data Contract Builder Data Product README Column-Level Audit Template AWS Cost Rough Estimator AWS Savings Plan Helper Azure Pricing Helper GCP Pricing Helper Egress Cost Checker S3 Storage Class Picker Lambda Memory Tuner CDN Cost Estimator RDS Instance Picker DynamoDB Capacity Estimator cloud-init Builder Terraform State Strategy Terraform Import Planner Pulumi Stack Template Crossplane Composition Template ArgoCD Application Template Flux Kustomization Template Kustomize Overlay Builder Helm Values Merge Helm Chart Lint Preview K8s ResourceQuotas Planner K8s NetworkPolicy Tester K8s ClusterRole Builder K8s PDB Helper K8s PVC StorageClass Picker Docker Multi-Stage Helper Docker Bake Template Docker Network Mode Picker OCI Image Spec Helper Wasm Runtime Picker Wasm Component Helper containerd Config Helper Podman Quadlet Template MQTT Topic Designer CoAP Message Builder LoRaWAN Payload Decoder

Base64 Encoder / Decoder Number Base Converter ASCII / Unicode Table ROT13 / Caesar Cipher Punycode Encoder / Decoder Unicode Explorer Caesar & VigenÃ¨re Cipher XOR Cipher One-Time Pad Enigma Machine Base58 Codec Binary ↔ Text Unicode Escape Converter Bitwise Calculator Roman Numeral Converter Hex Math MessagePack Viewer Avro Viewer BSON Viewer Bencode Codec RLP Codec CBOR Codec ASN.1 Viewer NDJSON Viewer JSON5 Converter Ion Viewer Base32 Codec Brotli Codec CRC Calculator Modbus Frame Builder

ARIA Role Reference TZ Abbreviation Reference TypeScript Reference CSS Selectors Reference React Hooks Reference Python Built-ins Reference C# Reference REST API Reference HTML Elements Reference Regex Syntax Reference Java Reference Go Reference Git Bisect Guide Git Stash Manager Tag Manager Guide Git Submodule Manager Rust Reference Kotlin Reference Swift Reference Ruby Reference Dart Reference Vue.js Reference Angular Reference Svelte Reference GraphQL Reference Docker Network Reference AWS CLI Reference Can I Use Quickref MDN Baseline Checker Image Aspect Mapper MITRE ATT&CK Quickref MITRE D3FEND Quickref License SPDX ID Lookup nerdctl Cheatsheet GPIO Pin Mapper I2C Address Finder SPI Mode Picker UART Baud Helper PWM Duty Cycle Calculator EXIF Fields Explainer Dice Probability Calculator ECS Cheatsheet glTF Fields Explainer Cron Explainer Pro Cron Next Runs Business Days Between ISO Week Helper Timezone DST Explainer Meeting Poll Builder Gantt Text Builder Sprint Cadence Planner Pomodoro Schedule Builder RRULE Builder man Page Template nroff Cheatsheet Vim Keybinding Cheat

WebP vs AVIF Helper

v1.0.0

Decide which format to ship — encode time, decode time, size, browser support trade-offs.

Input

Output

Output will appear here…

© 2026 freakyit - Made with·v2.5.0

Privacy Policy·Legal Notice