JSON Tools

JSON Formatter

Beautify and validate JSON with readable indentation.

Indentation

JSON input

Formatted JSON

Privacy-first processing

Your data stays private. All processing happens locally in your browser. Nothing is uploaded to our servers.

Built for real work

Why use JSON Formatter?

Turn compact or uneven JSON into a clean structure that is easier to review and debug.

2-space, 4-space, or tab indentation

Readable validation errors

Character, line, and byte statistics

{"project":"DevTools Hub","private":true,"features":["fast","local"]}

Is JSON Formatter free?

Yes. JSON Formatter is free to use and requires no account.

Does JSON Formatter upload my JSON?

No. The processing in this tool runs in your browser and does not send the JSON to our servers.

Can I use JSON Formatter on mobile?

Yes. The workspace adapts to modern mobile, tablet, and desktop browsers.

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