JSON Formatter
Beautify, minify, and validate JSON online. Inspect nested structure and syntax errors — all processing stays in your browser.
How to use the JSON formatter
Paste an API response, config file, or any JSON text. Format indents by level for readability; Minify removes extra spaces and newlines; Validate checks standard JSON syntax.
- Useful for tidying API responses, log data, and config files
- Helps find extra commas, unclosed quotes, and mismatched brackets
- Minified output is ready to paste into request params or storage fields
- Everything is parsed locally — nothing is uploaded to a server
FAQ
Is my data uploaded?
No. Input, formatting, and validation all run in your browser. The page never sends your JSON to a server.
What if formatting fails?
Click Validate to see where the browser reports an error, then check for extra commas, unclosed quotes, illegal escapes, or extra content around the JSON.
What's the difference between minify and format?
Formatting adds indentation and line breaks for reading and debugging; minifying strips unnecessary whitespace for transfer, logging, or storage.