JSON Formatter & Validator

Beautify, validate, minify, copy, and download JSON directly in your browser.

Input JSON

0 characters

Output

0 characters

How it works

This tool validates JSON using the browser’s native parsing support and formats it using built-in JSON serialization methods, which makes it fast and fully client-side for normal formatting and minifying workflows [web:456][web:457]. Your JSON can be prettified with indentation or compacted into a minified form without sending it to a server [web:457][web:458].

  • Use Format JSON to beautify valid JSON with 2 or 4 spaces [web:457].
  • Use Minify JSON to remove extra whitespace and compact the payload [web:457][web:458].
  • Use Validate JSON to check whether the input is valid JSON and show parse errors [web:456][web:457].