Is the JSON Formatter free?

Yes. It is free and works in your browser without an account.

Is my JSON uploaded to a server?

No. Formatting and validation happen locally in your browser.

Home/Tools/JSON Formatter

{} Developer · Browser-powered

Paste JSON to beautify, validate, minify, copy and download it. The tool also shows error position, type, size and key count.

Input JSON

Ctrl+Enter FormatEsc Clear

Indent Size

Download Filename

Privacy note: your JSON is processed locally in your browser. Nothing is uploaded.

Output

Ready

0Bytes

0Keys

-Root type

Paste JSON and click Beautify.