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JSON Formatter & Validator

v1.1.0

Format, validate, and minify JSON data with syntax highlighting and error detection.

Formats, validates, and minifies JSON with configurable indentation. Syntax errors are highlighted inline.

How to use
  • →Paste your JSON into the input panel — formatting is applied automatically.
  • →Switch between Prettify and Minify using the toolbar buttons.
  • →Hover over underlined text to see validation error details.
  • →Try a preset from the example picker to see sample input.
Input
Output
Formatted JSON will appear here...