JSON Formatter & Validator
Format, beautify, minify, and validate JSON with syntax highlighting and tree view.
Paste your JSON here
0 characters1 lines
Formatted Output
Output will appear here...
Keyboard Shortcuts
Ctrl+Shift+FFormat
Ctrl+Shift+MMinify
Ctrl+Shift+CCopy Output
What is JSON?
JSON (JavaScript Object Notation) is the most widely used data interchange format on the web. Every modern API, configuration file, and database uses JSON to structure data. Proper formatting makes JSON readable, and validation ensures it will parse correctly in any programming language.
Features
- Format/Beautify - Pretty-print JSON with 2-space indentation
- Minify - Remove all whitespace for smaller file size
- Validate - Check if your JSON is valid with detailed error messages
- Syntax Highlighting - Color-coded output for strings, numbers, booleans, and keys
- Tree View - Interactive expandable/collapsible tree with type badges
- Download - Save formatted JSON as a .json file
- Line Numbers - Both input and output show line numbers
- Stats - Object depth, key count, value count, file size
Building with JSON APIs? Compare the best developer tools on ToolVS.
All processing happens in your browser. No data is sent to any server.