JSON Formatter
Format, validate, and minify JSON directly in your browser.
Format JSON with confidence
Paste or type the JSON you want to work with.
Formatted output appears here.
How to use the JSON Formatter
- Paste JSON into the input panel.
- Choose your preferred indentation.
- Format, validate, or minify the result.
- Copy or download valid output.
What this tool does
Formatting adds readable indentation, validation checks syntax, and minification removes unnecessary whitespace. Every operation runs locally in this page.
Privacy
Your input is kept in the page while you work. It is not sent to a server, saved automatically, or used for tracking.
Related tools
JSON Formatter FAQ
Is this JSON Formatter free?
Yes. ToolBrio's browser-based formatter is free to use.
Does ToolBrio upload my JSON?
No. Formatting, validation, and minification happen locally in your browser.
What happens if my JSON is invalid?
The output stays unchanged and the tool shows a readable error with position details when the browser provides them.
What is the difference between formatting and minifying JSON?
Formatting adds whitespace for readability. Minifying removes unnecessary whitespace to make the JSON more compact.