JSON Compare Tool - Compare Two JSON Objects Online

Compare two JSON objects side by side and identify all differences, additions, and modifications with our advanced JSON comparison tool.

JSON A

JSON B

Key Features

🔍

Deep Comparison

Compare nested objects and arrays with unlimited depth. Detects additions, removals, modifications, and type changes.

✨

Auto Formatting

Automatically format and validate your JSON with syntax highlighting and error detection.

📋

Export Results

Copy individual sections or complete diff results to use in your development workflow.

Perfect for These Use Cases

API Response Comparison

Compare API responses between different versions or environments to detect changes and ensure consistency.

Configuration Files

Compare configuration files between environments to identify differences and prevent deployment issues.

Schema Validation

Compare JSON schemas to understand structural changes and validate data format compatibility.

Data Migration

Verify data transformations and migrations by comparing before and after JSON structures.

How to Use JSON Compare

Input Methods

  • Paste or type JSON data into the left and right text areas
  • Add optional descriptions to identify each JSON
  • Use the Format button to automatically format your JSON
  • Valid JSON will show a green checkmark, invalid JSON shows a red X

Comparison Results

  • Fields that exist only in JSON B
  • Fields that exist only in JSON A
  • Fields with different values
  • Fields with different data types
Tip: Use the toolbar buttons to format, copy, or clear your JSON data. The comparison works on deep object structures including nested objects and arrays.