JSON Formatter & Validator
Format, validate, and beautify JSON data with syntax highlighting and tree view. Perfect for developers working with APIs and configuration files.
Format Settings
Configure how your JSON should be formatted
JSON Editor
0 characters
Why Use Our JSON Formatter?
Format & Beautify
Instantly format messy JSON with customizable indentation (2 spaces, 4 spaces, or tabs).
Validate JSON
Catch syntax errors with detailed error messages showing exact line and column numbers.
Syntax Highlighting
Color-coded syntax makes it easy to read and understand complex JSON structures.
Powerful JSON Operations
Pretty Print
Format JSON with proper indentation for easy reading
Minify
Remove all whitespace to reduce file size
Validate
Check JSON syntax and get detailed error messages
Tree View
Explore JSON structure with expandable/collapsible nodes
How It Works
Paste JSON
Copy your JSON data into the input field.
Choose Operation
Format, minify, or validate your JSON data.
View Results
See formatted output with syntax highlighting or tree view.
Copy or Download
Copy to clipboard or download as a .json file.
Perfect For
API Development
Format API responses and requests for easier debugging and documentation.
Configuration Files
Validate and format config files like package.json, tsconfig.json, and more.
Data Analysis
Explore complex JSON structures with the interactive tree view.
Code Optimization
Minify JSON to reduce file size and improve load times.
Your Data Stays Private
This tool runs entirely in your browser using JavaScript. Your JSON data is processed locally and never uploaded to any server. All formatting, validation, and parsing happens on your device.
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