Compare & Merge Studio

Professional zero-dependency diff tool.

Local & Secure

Review code logic cleanly.

Inspect changes between two files securely in your browser. Features character-level diffing, synchronized scrolling, and a robust merge interface.

Similarity—
Changed—
Add / Del—
Total Lines—

1. Input Source Code

Paste or drag-and-drop files directly into the editors below.

Original (Base)
Revised (Modified)

2. Review & Merge

Use the Side-by-Side view's central arrows to push code changes left or right, instantly updating the source files.

Awaiting Input

Provide code in both panels and click Compare.