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View a Git Diff Online

Color-Coded Viewer for .patch and .diff Files

Need to use View a Git Diff Online right now?

Same green/red convention GitHub uses, applied to any raw patch file you paste or upload.

No sign-upNo uploads 100% free

Features

  • Runs entirely in your browser
  • Privacy-first — your data is never uploaded
  • Real-time, instant results
  • 100% free, no sign-up required
  • Works on desktop, tablet, and mobile
  • No installation needed

Who uses this tool?

Software engineersWeb developersAPI testersDevOps engineersStudents

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About View a Git Diff Online

A raw .patch or .diff file is plain text, but reading it that way makes it hard to quickly tell what was added versus removed — the +/- prefixes are there, but without color they blend together in a wall of monospace text.

This tool color-codes a patch or diff file line by line: added lines in green, removed lines in red, hunk headers (the @@ markers showing line numbers) in blue, and file headers bolded — the same visual convention used by Git and GitHub's own diff views — plus a summary count of total lines added and removed.

This works with standard unified diff format, the output of `git diff`, `git format-patch`, and most version control and code review tools, since that format is the de facto standard for representing line-based changes.

How it works

  1. Paste or upload the patch file. Paste the diff text directly, or upload a .patch or .diff file.
  2. Review the color-coded view. Added, removed, and header lines are visually distinguished.
  3. Check the summary count. See the total lines added and removed at a glance.

Examples

Simple diff

Input

-const x = 1;
+const x = 2;

Output

The removed line shown in red, the added line shown in green.

Frequently asked questions