JSON Utilities Suite - Demo & Examples

🚀 Quick Start

Open / in your browser to start using the JSON Utilities Suite. No installation required!

Open JSON Utilities

Popular JSON Tools & Alternatives

Looking for JSON tools? Our free online JSON utilities provide everything you need:

  • JSON Formatter: Better than JSON Formatter and JSONLint with real-time validation
  • JSON Validator: More comprehensive than JSON Schema validators with detailed error reporting
  • JSON Diff: Advanced comparison tools similar to DiffChecker but specialized for JSON
  • JSON Beautifier: Cleaner output than Beautifier.io with syntax highlighting

Related Developer Tools

If you're working with JSON, you might also find these tools useful:

📋 Available Features

🔍

JSON Diff Checker

Compare two JSON objects and find differences with visual highlighting. Supports both key-only and value comparison modes.

  • Visual diff highlighting with color-coded changes
  • Two comparison modes: Keys Only and Values
  • Copy results to clipboard for easy sharing
  • Real-time validation with detailed error messages
✨

JSON Formatter

Beautify or minify JSON with proper formatting. Perfect for cleaning up messy JSON data.

  • Beautify with proper indentation and spacing
  • Minify for compact storage and transmission
  • Real-time error detection and validation
  • Copy formatted output with one click
✅

JSON Validator

Validate JSON syntax and get detailed error information with line and column numbers.

  • Comprehensive syntax validation
  • Detailed error messages with exact location
  • JSON information display (type, size, keys)
  • Real-time validation as you type
🛡️

Schema Validator

Validate JSON data against JSON Schema with comprehensive error reporting.

  • Full JSON Schema validation support
  • Complex nested schema validation
  • Detailed error reporting with paths
  • Built-in example schemas for learning
📝

Text Diff Checker

Compare text files line by line with visual diff highlighting and statistics.

  • Line-by-line text comparison
  • Visual diff highlighting with colors
  • Change statistics (added, removed, unchanged)
  • Copy diff output in standard format
🌳

Tree Diff Viewer

Visual tree view of JSON differences with expandable/collapsible nodes.

  • Hierarchical tree view of JSON structure
  • Expandable and collapsible nodes
  • Visual indicators for changes
  • Copy tree diff results

🔍 JSON Diff Example

Try comparing these two JSON objects in the Diff Checker tab:

JSON A (Original):

{ "name": "John Doe", "age": 30, "email": "john@example.com", "address": { "street": "123 Main St", "city": "New York" }, "hobbies": ["reading", "swimming"] }

JSON B (Modified):

{ "name": "John Doe", "age": 31, "email": "john.doe@example.com", "address": { "street": "123 Main St", "city": "New York", "zipCode": "10001" }, "hobbies": ["reading", "hiking"], "active": true }

This will show you added, removed, and changed properties with visual indicators.

✨ JSON Formatter Example

Try formatting this minified JSON:

{"name":"Jane Smith","age":25,"skills":["JavaScript","Python","React"],"contact":{"email":"jane@example.com","phone":"555-1234"}}

Switch between "Beautify" and "Minify" modes to see the difference!

✅ JSON Validator Example

Try validating this JSON with a syntax error:

{ "name": "Test User", "age": 30, "email": "test@example.com", "settings": { "theme": "dark", "notifications": true }, "tags": ["developer", "designer"] }

Now try adding a missing comma or quote to see error detection in action!

🛡️ Schema Validation Example

Use the "Load Example" button in the Schema Validator tab to see a complete working example with:

  • A JSON Schema defining a user object
  • Sample JSON data that matches the schema
  • Validation results and error reporting

📝 Text Diff Example

Compare these two text snippets:

Text A:

function greet(name) { return "Hello, " + name; } function add(a, b) { return a + b; }

Text B:

function greet(name) { return `Hello, ${name}!`; } function add(a, b) { return a + b; } function multiply(a, b) { return a * b; }

🌳 Tree Diff Example

Use the same JSON examples from the Diff Checker in the Tree View tab to see a hierarchical visualization of the differences.

💡 Tips for Best Results

  • Use the "Copy" buttons to easily share results
  • Try the "Reset" buttons to clear all inputs
  • Use "Expand All" in Tree View for complex JSON structures
  • Check both "Keys Only" and "Values" modes in Diff Checker
  • Use the Schema Validator's example to understand JSON Schema

🔧 Browser Compatibility

This application works in all modern browsers including:

  • Chrome 60+
  • Firefox 55+
  • Safari 12+
  • Edge 79+

🌙 Theme Support

The application supports three theme modes:

  • Light: Clean, bright interface for daytime use
  • Dark: Easy on the eyes for nighttime use
  • System: Automatically follows your system theme preference

Click the theme toggle button in the top-right corner to switch themes. Your preference is saved and will be remembered on your next visit!

📱 Mobile Support

The application is fully responsive and works great on mobile devices. Try resizing your browser window or opening it on your phone!

💡 About JSON Utilities Suite

Our Mission

JSON Utilities Suite was created to provide developers with a comprehensive, free, and easy-to-use toolkit for working with JSON data. We understand the challenges developers face when dealing with JSON formatting, validation, and comparison tasks.

Why Choose Our Tools?

  • Free & Open Source: All tools are completely free to use with no registration required
  • Privacy First: Your data never leaves your browser - all processing happens locally
  • No Dependencies: Pure HTML, CSS, and JavaScript - no frameworks or libraries needed
  • Cross-Platform: Works on any device with a modern web browser
  • Real-Time: Instant feedback and validation as you type
  • Professional: Built with modern web standards and best practices

Perfect For

🔧 API Development
📊 Data Analysis
🐛 Debugging
⚙️ Configuration Files
🔄 Data Migration
📚 Learning JSON
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