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JSON Diff & Merge
Compare two JSON objects side-by-side. Visualize differences, merge changes, and export results.
Left (Original)
Right (Modified)
How to Use
- Paste the original JSON in the left panel
- Paste the modified JSON in the right panel
- Differences are calculated and displayed automatically
- Review the changes table showing added, removed, and modified values
- For each difference, click L (left) or R (right) to choose which version to keep
- Click "Merge" to generate the combined JSON output
Features
- ✓Deep recursive comparison
- ✓Visual diff highlighting
- ✓Change summary (added/removed/modified)
- ✓Interactive merge selection
- ✓Handles nested objects and arrays
- ✓Copy and download merged result
- ✓Swap panels functionality
- ✓100% client-side processing