Online JSON formatter tool

Validate, beautify, and minify JSON in the browser, then turn it into something easier to inspect or share.

Input JSON
Formatted output
The formatted result will appear here automatically.

Want to turn this JSON into a live API?

Store the payload as a reachable endpoint with HTTPS and CORS so frontend experiments and demos can call it directly.

Host JSON for free

Why use an online JSON formatter?

API responses are often minified for machines, not humans. A formatter helps teams inspect structure, catch syntax issues, and prepare compact payloads for shipping.

  • Pretty print: Turn hard-to-read payloads into an indented structure that is easier to scan and debug.
  • Validate: Catch syntax issues such as missing quotes, trailing commas, or malformed objects quickly.
  • Minify: Compress JSON before shipping it so the payload is smaller and more efficient to transfer.