About the JSON Formatter
The JSON Formatter beautifies, validates, and minifies JSON instantly. Paste messy or minified JSON to get clean, indented output that’s easy to read — or minify it to the smallest valid size for production. It also flags syntax errors so you can fix invalid JSON fast. Everything runs locally in your browser.
How to use the JSON Formatter
- Paste your JSON.
- Click Beautify to indent it or Minify to compress it.
- If invalid, read the error message, fix it, and try again.
Frequently asked questions
Does it validate my JSON?
Yes — if the JSON is invalid, you’ll see a clear error message describing the problem.
Is my JSON uploaded anywhere?
No. Formatting and validation happen entirely in your browser.