diffront

diffront is like git diff with a native GUI and allows you to do a local review with inline comments.

See a diff, leave inline comments, then copy them to your clipboard.

Usage

cargo install --path .
diffront                  # all uncommitted work: `git diff HEAD` plus untracked files
diffront main...HEAD      # anything else is passed to `git diff`
diffront --cached

To run it as git review foo..bar, add a git alias:

git config --global alias.review '!f() { cd "${GIT_PREFIX:-.}" && diffront "$@"; }; f'

Click a line to comment on it. Press Enter to save, Shift+Enter for a new line, or Esc to cancel. ⌘⇧C copies the review as Markdown, and Finish review adds an overall comment. Tick Reviewed on a file to mark and collapse it, or click its header to just collapse it. The diff is side by side; ⌘⇧D or the toolbar button switches to inline. On Linux, use Ctrl in place of ⌘.

The Files changed and Commits tabs (⌘1, ⌘2) switch between the whole diff and one commit at a time; ⌘[ and ⌘] step through commits. Comments stay with the view you left them in, and all of them are copied together.

Click the diff name in the toolbar to change the base, or press ⌘R to refresh. Comments follow their lines into the new diff. If a line is gone, diffront lists the affected comments and asks before removing them. Reviewed marks are cleared from files that changed.