cmux git diff viewer

DiffHub is a cmux git diff viewer for agent code review. It opens the whole branch in a browser split, signals when files change, and keeps inline comments beside the code so you can send focused notes back to your coding agent.

It opens in a browser split and shows your uncommitted changes against HEAD by default, plus untracked files. Switch the scope to All to compare the whole branch with the detected base branch, usually origin/main. If you do not use cmux, you can open the same view in a normal browser window.

Watch the demo (2 min)

Quick start

Copynpx diffhub@latest cmux

That starts DiffHub and opens the diff in a cmux browser split.

Copynpx diffhub@latest

Use that if you want a normal browser tab instead.

Global install