JSON Formatter

About JSON Formatter

JSON is the language of APIs, but real-world responses arrive as unreadable single-line walls of text. Our free JSON Formatter beautifies JSON with proper indentation, validates its syntax, and can minify it back down when you need compact output.

Paste any JSON to format, minify, or validate it. Errors are reported with their position so you can fix malformed payloads fast, and nothing you paste ever leaves your browser.

Handy for

  • Debugging API responses during development.
  • Spotting a missing comma or bracket in config files.
  • Minifying JSON before embedding it in a page.