JSON Formatter

A high quality, completely free JSON formatter.

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Configuration

Indent

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Paste your JSON here

or

Compose

Use this JSON editor component and dozens more to build and deploy your own internal tools in minutes.

Try Compose

The Best JSON Formatter

Beautify, minify, and validate JSON instantly, right in your browser. Paste any raw or compact JSON above, hit format and get a clean result you can copy, inspect, or download. No ads, no sign‑ups, and your data never leaves your computer.

Key Features

  • Modern, minimalistic JSON formatter that looks and performs better than any alternatives
  • Format JSON instantly with indentation and syntax highlighting.
  • Minify JSON for compact, production‑ready payloads.
  • Built in JSON validator that ensures well-formed JSON and surfaces errors
  • Keyboard shortcuts to work with the JSON formatter without having to use your mouse.
  • Privacy‑first: processing happens locally; nothing is sent to a server.
  • Export your JSON to a json, csv, or txt file.

Frequently Asked Questions

Does this JSON formatter upload my files?

No. All processing happens entirely in your browser. Your JSON never touches our servers, making this tool safe for sensitive data.

Can it handle large JSON documents?

Yes. Powered by the same Ace editor used in thousands of professional text editors, it comfortably handles files up to several megabytes.

Who maintains this project?

This formatter is built and maintained by the engineers behind Compose, an open‑source platform for internal tools with just backend code.