Text & Web Utilities
JSON Formatter
Beautify, validate, and minify JSON.
FreeNo sign-upWorks in your browser
Formatted JSON
Your result will appear here.About the JSON Formatter
Format, validate, and minify JSON free — paste any JSON and get it beautifully indented in one click, or minified for production. Invalid JSON is flagged with the exact parser error and position, so you can fix broken API responses and config files fast. Everything runs in your browser: your data is never uploaded, which makes it safe for tokens, payloads, and anything sensitive.
How to use the JSON Formatter
- 1Paste your JSON.
- 2Choose Beautify or Minify.
- 3Fix any flagged errors, then copy the result.
Frequently asked questions
Does it validate my JSON?
Yes — if the input isn't valid JSON, the tool shows the parser error so you can fix it.
Is my data sent anywhere?
No. Formatting happens entirely in your browser.
Why is my JSON invalid?
The usual culprits: trailing commas, single quotes instead of double, unquoted keys, or comments — none are allowed in strict JSON. The error message points to the exact spot.