JSON Diff Tool
Compare two JSON objects and highlight differences with detailed analysis and visual comparison
Original JSON
Modified JSON
Comparison Results
Compare two JSON objects to see differences here
Related JSON Tools
JSON Minifier
JSON Beautifier
JSON Converter
JSON Schema Validator
About JSON Diff Tool
JSON Diff Tool helps you compare two JSON objects and identify differences between them. Perfect for debugging, version control, and data analysis.
Key Features
Visual Comparison
Side-by-side comparison with color-coded differences
Change Detection
Automatically detect additions, deletions, and modifications
Deep Analysis
Analyze nested objects and arrays with detailed path information
Merge Conflicts
Identify and resolve merge conflicts in JSON data
Fast Processing
Efficient comparison algorithm for large JSON files
Export Results
Download comparison results and diff reports
Common Use Cases
Development & Testing
- • Compare API responses before and after changes
- • Validate configuration file modifications
- • Debug data transformation issues
- • Test data migration results
Data Analysis
- • Compare database exports
- • Analyze data changes over time
- • Identify schema evolution
- • Validate data synchronization
Comparison Examples
Example 1: User Profile Updates
Original:
{
"id": 123,
"name": "John Doe",
"email": "john@example.com",
"age": 30,
"preferences": {
"theme": "light",
"notifications": true
}
}Updated:
{
"id": 123,
"name": "John Smith",
"email": "john.smith@example.com",
"age": 31,
"preferences": {
"theme": "dark",
"notifications": true,
"language": "en"
},
"lastLogin": "2024-01-15T10:30:00Z"
}Changes detected: Name changed, email updated, age incremented, theme preference modified, new language preference added, new lastLogin field added.
Example 2: API Response Evolution
Version 1:
{
"status": "success",
"data": {
"users": [
{"id": 1, "name": "Alice"},
{"id": 2, "name": "Bob"}
]
}
}Version 2:
{
"status": "success",
"data": {
"users": [
{"id": 1, "name": "Alice", "role": "admin"},
{"id": 2, "name": "Bob", "role": "user"},
{"id": 3, "name": "Charlie", "role": "user"}
],
"total": 3
},
"version": "2.0"
}Changes detected: Role field added to existing users, new user Charlie added, total count field added, API version field added.
Frequently Asked Questions
How does the JSON diff algorithm work?
Our diff algorithm performs a deep comparison of JSON objects, analyzing each property and nested structure. It identifies additions, deletions, and modifications at any level of nesting, providing detailed path information for each change.
Can I compare large JSON files?
Yes, the tool is optimized for performance and can handle large JSON files efficiently. However, very large files (>10MB) may take longer to process and could impact browser performance.
What types of differences are detected?
The tool detects additions (new properties), deletions (removed properties), modifications (changed values), type changes (e.g., string to number), and structural changes in arrays and objects.
How are array differences handled?
Array differences are detected by comparing elements at each index. The tool identifies added, removed, or modified array elements and shows their positions in the array.
Can I export the comparison results?
Yes, you can download a detailed diff report in JSON format that includes all detected changes with their paths, types, and values. This is useful for documentation and analysis.
Is the comparison case-sensitive?
Yes, JSON comparison is case-sensitive for both property names and string values. "Name" and "name" are considered different properties, and "Hello" and "hello" are different values.