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JSON Formatter

Paste raw JSON and instantly format it with customizable indentation. Supports minification, key sorting, and highlights syntax errors with line numbers.

Paste any JSON string to instantly beautify it with proper indentation and syntax highlighting. The formatter also catches syntax errors with exact line and column numbers.

Debugging API responsesFormatting config filesInspecting JSON dataMinifying JSON for production

100% private — all processing runs in your browser. No files are uploaded to any server.

Indent:

Sort keys

Input JSON

Output

Formatted JSON will appear here...

Frequently Asked Questions

Is my JSON data secure?

Yes. All processing happens client-side in your browser. No data is ever sent to our servers.

What's the maximum JSON size?

The tool handles JSON up to several megabytes. For very large files, consider using a dedicated JSON editor.

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