JSON Formatter & Validator
Format, validate, and beautify JSON data with syntax highlighting and error detection. Minify for production or beautify for readability.
Output will appear here...- •Schema validation with custom schemas
- •JSON diff comparison tool
- •Handle large files (>10MB)
- •Shareable links for collaboration
Key Features
About JSON Formatter & Validator
The JSON Formatter & Validator is an essential developer tool for working with JSON data. Whether you're debugging API responses, configuring applications, or analyzing data structures, this tool makes JSON handling effortless.
Our formatter instantly transforms messy, minified JSON into beautifully formatted, human-readable code with proper indentation. The built-in validator catches syntax errors and highlights exactly where issues occur, saving hours of debugging time.
All processing happens entirely in your browser - your data never leaves your device, making it safe to use with sensitive API responses, configuration files, and production data.
Common Use Cases
- Formatting API response data for debugging
- Validating JSON configuration files
- Beautifying minified JSON for readability
- Checking JSON syntax before deployment
- Viewing complex nested JSON structures
- Converting JSON to minified format for production
How to Format JSON Online
- Paste your JSON data into the input text area
- The JSON is instantly formatted with proper indentation and syntax highlighting
- Check the validation status for any syntax errors
- Copy the formatted JSON or toggle to minified view for production use
Why Use Our JSON Formatter?
- Instant Formatting: JSON is beautified as soon as you paste it
- Syntax Validation: Errors are highlighted with line numbers and descriptions
- 100% Private: All processing happens in your browser - no server uploads
- Large File Support: Handle JSON files up to 10MB efficiently
- Minify Option: One-click minification for production deployment
- Tree View: Explore nested JSON structures visually