Does it validate JSON?

Yes. If your JSON is invalid, the tool shows the error message explaining what's wrong.

What indentation does it use?

It uses 2-space indentation, which is the most common standard for JSON.

It can handle JSON up to several megabytes. For very large files, performance depends on your browser.

Yes. JavaScript's JSON.stringify preserves the insertion order of object keys.

Developer Tools

Format and pretty-print JSON with proper indentation.

100% client-side processing

100% client-side — your text never leaves your browser

Input

0 characters|0 words|0 lines

Output

0 characters|0 words|0 lines

Format and pretty-print JSON with proper indentation.. Runs 100% client-side — no data is sent to any server.

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