JSON Diff Tool Online

Compare two JSON files and visualize differences. Detect changes, additions, and deletions with our advanced diff tool.

Side-by-Side Compare Unified Diff View Change Statistics

Original JSON

Modified JSON

Unified View Side-by-Side

Comparison Result

Enter JSON data in both fields and click "Compare JSON" to see the differences

Ready to compare JSON data

JSON Diff Features

Side-by-Side Compare

View differences in a clear side-by-side layout for easy comparison

Unified Diff View

Traditional unified diff format with line-by-line changes

Change Statistics

Detailed statistics showing additions, deletions, and modifications

Swap & Export

Easily swap JSON sides and export diff results

File Upload

Upload JSON files directly for comparison

Fast & Secure

Client-side processing ensures your data never leaves your browser

How to Compare JSON Files

Input Your JSON Data

Paste your original JSON in the left field and the modified JSON in the right field, or upload JSON files using the upload buttons.

Choose View Mode

Select between unified diff view (traditional) or side-by-side comparison mode based on your preference.

Compare and Analyze

Click "Compare JSON" to generate the diff. Review the highlighted changes, additions, and deletions in the result area.

Review Statistics

Check the comparison summary to see the total number of changes, additions, deletions, and modifications.