JSON Formatter & Beautifier
Format, beautify, and validate JSON. Handles JS objects, escaped strings, and co...Format, beautify, and validate JSON. Handles JS objects, escaped strings, and console output with tree view and minify mode.
Input
Output
{
"name": "Yali",
"version": "1.0.0",
"features": ["JSON Formatter", "Code Tools", "PDF Converter"],
"config": {
"theme": "dark",
"settings": { "autoSave": true }
},
"users": [
{ "id": 1, "name": "John" },
{ "id": 2, "name": "Jane" }
]
}Formatter Features
Why Use JSON Formatter & Beautifier?
Handles Broken JSON
Fixes unquoted keys, trailing commas, and converts JS objects to valid JSON automatically.
Console Output Support
Paste escaped strings with \n, \t, and [Object] placeholders directly from your console.
Collapsible Tree View
Navigate nested JSON easily with an interactive, collapsible tree structure.
100% Client-Side
Your data never leaves your browser. No uploads, no servers, completely private.
Format & Minify
Beautify JSON with proper indentation or minify to remove all whitespace for production.
Instant Results
Real-time formatting with no delays. Paste your JSON and get results immediately.
Common Uses for JSON Formatter
API Debugging
Format API responses to quickly identify issues in nested data structures.
Config Management
Beautify configuration files for review or minify them for production deployment.
Code Development
Convert JavaScript objects to valid JSON for use in APIs and data files.
Log Analysis
Format escaped JSON from server logs and console output for easy reading.
How It Works
Paste Your JSON Data
Copy JSON from APIs, console, or code. We handle escaped strings and JS objects too.
Click Format or Minify
Format beautifies with proper indentation. Minify removes all whitespace for smaller file size.
Copy the Result
Use Tree view for navigation or Text view for copying. One-click copy to clipboard.
Tips & Best Practices
Use Tree View for Large JSON
Tree view lets you collapse and expand sections, making it easier to navigate large JSON structures.
Minify for Production
Use the Minify button to remove all whitespace before sending JSON in API requests or storing in production.
JS Objects Supported
You can paste JavaScript objects with unquoted keys - the formatter will automatically convert them to valid JSON.