A Chrome + Firefox MV3 extension that replaces GitHub's diff and file-tree UI with
Pierre's components (@pierre/diffs,
@pierre/trees) to get the diffshub.com feel onto github.com.
How it works. A document-start content script detects the surface (PR / commit /
compare / code browser), hides GitHub's diff and tree, and hands the data to a
main-world renderer that mounts Pierre in their place. The .diff is fetched through
a background worker so private repos work via the session cookie. A toggle bar at
the top flips between Pierre and GitHub.
Features. Tree-of-diffs PR view, code-browser file tree, expand-unchanged context, unified/split toggle, Pierre/Github view, per-file "Viewed" to collapse, inline comments, line selection, GitHub light/dark theme, large PR support
Build. Requires Bun: bun install && bun run build → dist/chrome-mv3. Firefox: bun run build:firefox.
Screenshots
Video demo