Developer

JSON Formatter

Format, validate and minify JSON. Free, no sign-up, and it runs in your browser — your files are never uploaded.

How to use

1. Paste JSON
2. Choose indentation, minify or sort keys
3. Copy the output — errors show the problem position

Questions

Do I need an account?

No. Every tool is free to use without signing up.

Is my data uploaded?

No. This tool runs in your browser, so the text and files you use stay on your device.

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