diffity
A GitHub-style diff viewer for reviewing code changes locally. It works alongside AI coding tools such as Claude Code, Cursor and Codex.
Pick a small issue you can reproduce, then fix it with your AI coding agent.
Share on XLicense: MIT
Overview
Diffity is a diff viewer and code review tool that looks like GitHub's. You run it inside a git repo and your browser opens a syntax-highlighted diff of your changes. It is not tied to one AI tool, so Claude Code, Cursor, Codex and other coding agents can review the diff and leave comments that you or the agent can then resolve.
Key features
- Diff uncommitted work, commits, branches or tags
- Agents review code and comment on the diff
- Browse project files and comment on any file
- Pull down a GitHub PR, review locally, push comments back
- Run in several repos at once, each on its own port
Best for
Developers who write code with AI agents and want a familiar diff view for local review. It installs globally with npm.
- Upstream
- nilbuild/diffity
- Fork on GitHub
- Guo-astro/diffity
- Upstream stars
- 861
- Category
- Developer tools and infrastructure
- Language
- TypeScript
- License
- MIT
- Forked
- 2026-03-22
- Sync status
- In syncLast synced 2026-10-19
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