JSON Formatter & Validator

Format, validate, minify, and inspect JSON entirely in your browser.

Formatted output appears here.

How to use this tool

  1. 1Paste or upload JSONPaste your raw JSON text or drag-and-drop a JSON file into the input editor.
  2. 2Format or minifyClick 'Format' to beautify with clean indentation, or 'Minify' to compress into a single line.
  3. 3Copy outputValidate any error locations marked by the checker, and click 'Copy Output' to copy the clean JSON.

What this tool is useful for

  • ✓Beautifying unformatted or single-line API payloads for easier debugging.
  • ✓Checking JSON syntax correctness and locating precise syntax error locations.
  • ✓Minifying JSON config files to reduce page size or payload transfer weight.

Privacy & processing

All formatting, validation, and minification is performed entirely locally in your browser. Your data never leaves your device.

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