Paste a unified diff patch to visualize code changes.
Free online diff patch viewer. Visualize unified diff patches with highlighted additions, deletions, and changes. Side-by-side and inline views. Pure frontend. | No Signup, Client-Side · No Server Uploads
Zero Dependencies·Works OfflinePaste a unified diff patch to visualize code changes.
A free online tool to visualize unified diff patches. Highlights additions, deletions, and changes with inline and side-by-side views.
Code review, patch preview, version comparison, changelog visualization.
Unified diff is the most common code diff format. It uses @@ to mark hunk positions, + for additions, - for deletions, and space for context lines.
Primarily unified diff format, the default output of git diff, svn diff, and other version control tools.
Inline view shows additions and deletions consecutively, more compact; side-by-side shows old and new code in columns, more intuitive.
All processing happens locally in your browser. Diff content is never uploaded to any server.
The browser can handle diffs with thousands of lines, though very large files may render slowly.