Cross platform Rust app that just shows Git diffs

Diffy — a native Git diff viewer, built in Rust.

Keep up with your agents’ changes.

macOS beta · Windows alpha · Linux alpha · Requires Git

One purchase. All platforms. Your purchase supports Diffy.

Diffy is a native Git diff viewer built in Rust with GPUI Kit. Review live changes, keep worktrees together, and read GitHub pull requests without checking out a branch.

One project in the sidebar, with your Git worktrees in tabs across the top. Switch checkouts without losing your selected file or reading position. New worktrees appear automatically, and each checkout keeps its own staged and unstaged changes.

Switch between worktrees and read-only PR diffs without checking out a branch. Search open and draft PRs by title or number, and load more as you go. Loading indicators show when PRs and diffs are being fetched. Uses your existing GitHub CLI login for public and private repositories.

Jump between files and projects. Find a command without hunting for a button.

Use ⌘ on macOS and Ctrl on Windows/Linux. Install the terminal command, then start with diffy .

Find local Git projects from Herdr, Codex, and Claude Code in one list, with duplicates merged and recently active projects first. Repositories in system temporary folders are hidden. Pick the projects you want to import, and refresh the list whenever you need it.

Local diffs refresh as you edit. Staged and unstaged changes stay separate. Stage a file, or all of them, when you’re ready.

Give each project a name, color, emoji, or image. Right-click its icon to open the current checkout in your file manager, terminal, or editor.

Choose split or unified diffs, adjust the font size, and wrap long lines. Large reviews load the file you’re reading and keep your place as changes arrive.

No changes yet? Play a little Snake in the empty diff pane. Press Enter to start or pause, and steer with the arrow keys.

Diffy supports macOS, Windows, and Linux. macOS is in beta; Windows and Linux are early alphas with limited hardware testing. Every platform requires Git.

Diffy discovers local Git projects from Herdr, Codex, and Claude Code. Choose which projects to import, then review their live file changes. Discovery reads local project metadata; it does not run agents or read their conversations.

Yes. Diffy shows read-only diffs for open and draft GitHub.com pull requests using your existing GitHub CLI login. It does not check out a branch. Review comments, approvals, merging, and GitHub Enterprise are not supported.

Diffy is open source under the MIT license and can be built for free. The suggested one-time purchase is $7.99 USD during beta and supports all platforms. Public downloads are not payment gated.