How to Compare JSON Objects Online - Free JSON Diff Tool
Compare two JSON objects and see the differences highlighted. Perfect for debugging, version control, and data validation. All processing happens in your browser.
Scenario
You're debugging an API response and need to see what changed between two JSON responses. Or you're reviewing code changes and want to compare configuration files. Developers frequently need to compare JSON data to identify differences, track changes, or validate data structures.
For
- •Backend developers comparing API responses
- •Frontend developers debugging data changes
- •DevOps engineers reviewing configuration changes
- •QA testers validating data structures
- •Anyone working with JSON data who needs to spot differences
Common issues
- •Manually comparing large JSON objects is time-consuming
- •Missing subtle differences in nested structures
- •Not knowing what changed between API versions
- •Difficulty tracking configuration file changes
- •No visual way to see JSON differences
Our JSON Compare tool makes it easy to compare two JSON objects and see exactly what's different. All differences are highlighted with clear visual indicators.
Features
Visual Differences: Added values are shown in green, removed values in red, and modified values in yellow.
Deep Comparison: Compares nested objects and arrays recursively.
Path Display: Shows the exact path to each difference (e.g., user.profile.name).
Value Display: Shows both old and new values for modified items.
Privacy First: All comparison happens in your browser - no data leaves your device.
How to Compare JSON
Visit our [JSON Compare tool](/tools/json-compare)
Paste your first JSON object in the left textarea
Paste your second JSON object in the right textarea
Click "Compare" to see all differences
Review the differences highlighted by type:
- **Green**: New values added
- **Red**: Values removed
- **Yellow**: Values modified
Use the path information to locate differences in your code or data
This tool is perfect for debugging API changes, reviewing configuration updates, or validating data transformations.