JSON Formatter & Validator Free โ Beautify JSON Instantly
Paste messy JSON and get perfectly formatted, indented output. DragKit validates JSON syntax and highlights errors โ all in your browser, no data sent anywhere.
โจ Pretty Print
Transform minified JSON into beautifully indented, readable format. Customizable indentation (2 or 4 spaces).
โ Validation
Instantly detect syntax errors with line numbers. Fix broken JSON fast.
๐ Private
Your API responses and config files stay on your device. No server sees your data.
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JSON Formatter FAQ
Does it validate JSON?
Yes. Invalid JSON is detected with error messages pointing to the issue.
Can I minify JSON?
Yes. Toggle between beautified and minified output.
Is there a size limit?
No hard limit. Very large JSON files depend on your browser's memory.
Is my data safe?
Yes. Everything is processed locally. No data is sent to any server.
Is this free?
Yes, completely free.