Browser extension for reviewing large PRs on GitHub
Open a PR in one scrollable view. Jump to any file, comment inline, and publish your review when you're ready.
Powered by Pierre Trees and Diffs.
diffy_demo.mp4
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- Full-screen diffs — scroll the whole PR in one view
- Searchable file tree — jump to any file; resize the sidebar and keep the width
- Inline comments & batch reviews — queue comments and publish from the review dock
- Viewed-file tracking — mark files as read and see review progress
- Split or unified layout — plus themes, custom fonts, image diffs, and open-in-tab
- Open a PR on GitHub → View Diff (or right-click a PR link → Open in diffy).
- Scroll the diff and use the file tree to jump around.
- Comment on lines, then publish from the review dock when ready.
A token is optional for public repos. Save a personal access token in the extension popup, then reload open PR tabs.
Use a token for:
- Private repos
- Higher API rate limits
- Posting review comments
- Viewed-file tracking and batch reviews
| Capability | Fine-grained PAT | Classic PAT (ghp_…) or gh auth token (gho_…) |
|---|---|---|
| View diffs (public/private) | ✅ | ✅ |
| Read inline comments | ✅ | ✅ |
| Post inline comments | ✅ | ✅ |
| Mark files as viewed | ❌ | ✅ |
| Batch review / publish verdict | ❌ | ✅ |
Fine-grained tokens (github_pat_…) work for diffs and comments. Viewed files and publishing reviews need a classic PAT with repo scope, or a token from gh auth login.
See CONTRIBUTING.md.