Developer

JSON Formatter

Format, validate, minify, and sort JSON in the browser.

Browser-onlyLocal inputNo upload
Local runner

Format JSON in your browser

JSON is parsed locally in your browser. Nothing is sent to ErgoKit Workers.

Paste JSON, then format, minify, or sort keys locally in your browser.

Checks

  • JSON parse validation
  • Pretty formatting
  • Minified output
  • Optional sorted object keys

Result

  • Valid or invalid verdict
  • Formatted output
  • Size, type, nodes, and depth
  • Copy and download actions

Guardrails

  • Runs fully in your browser
  • No network request is made
  • Input is not stored
  • Works with objects, arrays, and JSON primitives

Privacy

This tool processes input locally in your browser. Input is not sent to ErgoKit Workers or stored.