JSON Formatter
Format, beautify & validate JSON instantly.
About this tool
Format, beautify, minify and validate JSON in your browser. Instantly catch syntax errors with clear messages.
Key Features
- Beautify with 2/4-space or tab indent
- Minify to one line
- Live validation with error location
- Fully private — nothing is uploaded
How to Use
- Paste your JSON.
- Click Beautify or Minify.
- Copy the clean result.
Benefits
- Debug API responses
- Clean config files
- Validate before deploying
Frequently Asked Questions
Yes — if the JSON is invalid you'll see the exact parser error message.
Absolutely. All parsing happens locally in your browser.