Is this JSON formatter free?
Yes. The JSON formatter is free to use and does not require an account.
Free browser tool
JSON Formatter & Validator
Paste JSON to format it for readability, minify it for compact output, validate syntax, and copy the processed result. Everything runs client-side in your browser.
JSON tool
Paste JSON, then format, minify, validate, or copy the processed result.
How to use this JSON formatter
- Paste your JSON into the input textarea.
- Choose Format JSON, Minify JSON, or Validate JSON.
- Review the result or error message, then copy the output.
FAQ
Does this tool upload my JSON?
No. Formatting, validation, minification, and copying happen in your browser.
Can I minify JSON with this tool?
Yes. Use the Minify JSON button to remove whitespace and create compact JSON output.
What happens when JSON is invalid?
The tool shows a clear error message so you can find and fix the syntax issue.