JSON Formatter
Beautify or minify JSON with clear validation errors.
About this tool
Format messy JSON into readable indented output, or minify payloads for APIs. Invalid JSON is flagged with a clear error so you can fix it quickly.
How to use
- Paste JSON into the editor.
- Choose indent size and click Format or Minify.
- Copy the result or fix any validation errors shown.
Examples
- Pretty-print an API response for debugging.
- Minify a config file before embedding.
- Fix indentation in a package.json snippet.
Benefits
- Instant client-side formatting
- Readable error messages
- Pretty and minify modes
- No account required
Frequently asked questions
Does this validate JSON?+
Yes. Formatting requires valid JSON. For validation-focused checks, use our JSON Validator tool.
Is my JSON uploaded?+
No. Parsing and formatting run entirely in your browser.
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