How to Format and Validate JSON Online - Free JSON Tool
Format, validate, and minify JSON data instantly. Our free JSON formatter works entirely in your browser with syntax highlighting and collapse/expand features.
Scenario
You received a minified JSON response from an API that's impossible to read. You need to validate JSON before using it in your application. You have a large JSON file that needs formatting for better readability. You're debugging and need to quickly check if JSON is valid. These are daily challenges for developers working with JSON data.
For
- •Web developers working with JSON APIs and data
- •Backend developers formatting and validating JSON responses
- •Frontend developers handling JSON data in applications
- •Data analysts working with JSON datasets
- •Anyone who needs to work with JSON in their development workflow
Common issues
- •Minified JSON is unreadable and difficult to debug
- •Not knowing if JSON is valid before using it in code
- •Large JSON files are hard to navigate and understand
- •Having to use multiple tools for formatting, validating, and minifying
- •Privacy concerns when pasting sensitive JSON data online
- •Slow processing when formatting very large JSON files
- •Losing JSON structure when copying between tools
JSON formatting is essential for developers working with APIs, configuration files, or data structures. Properly formatted JSON is easier to read, debug, and maintain.
Our JSON Formatter provides comprehensive JSON tools including formatting, validation, and minification. All processing happens in your browser - your data stays private.
JSON Formatter Features
Beautify: Format JSON with proper indentation and structure.
Minify: Remove all whitespace to create compact JSON.
Validate: Check if JSON is valid and identify errors.
Syntax Highlighting: Color-coded JSON for easy reading.
Collapse/Expand: Navigate large JSON structures easily.
How to Format JSON
Visit our [JSON Formatter](/tools/json-formatter)
Paste your JSON data
Choose format, minify, or validate
View formatted or validated result
Copy the result
The formatter handles all JSON operations instantly, making it perfect for developers and data analysts.