JSON Formatter & Validator

Beautify, minify and validate JSON data with clear error messages.



About JSON Formatter & Validator

JSON Formatter makes messy JSON readable by adding indentation, or compresses it by removing all whitespace. The validator points out syntax errors so developers can quickly fix API responses, configuration files and data exports.

How to use

  1. Paste your JSON into the input box.
  2. Click Format to beautify, Minify to compress or Validate to check syntax.
  3. Copy the output.

Frequently Asked Questions

No. Formatting runs in your browser using JavaScript.

Your privacy

This tool runs entirely in your browser. Your files and text are never uploaded to our servers.