Does formatting change JSON data?
No. It changes whitespace and indentation, not keys or values.
JSON Formatter
Format, validate and beautify JSON data
Input JSON
Formatted Result
View Mode:
Formatted code will be displayed here...
How to Use
- • Click "Beautify" to format and beautify JSON data
- • Click "Minify" to compress JSON data
- • Click "Validate" to check JSON syntax
- • Click "Load" to load sample data
- • Switch to "Tree View" to explore JSON structure interactively
- • Use the "History" button to save, view, and manage your past JSON entries locally.
- • All processing is done locally in your browser
How to format JSON online
Paste JSON to beautify, minify, validate, and inspect it in a tree view. Processing stays in your browser, making the tool useful for configuration files, API responses, and debugging data.
- Paste JSON or load the sample.
- Choose beautify, minify, or validate.
- Review the output and tree, then copy or download the result.
Is my JSON uploaded?
No. JSON is processed only in the current browser tab.