ReviewUI

GitHub: https://github.com/RazHaimovich/ReviewUI

Review any git branch like a GitHub pull request, locally, and turn your review comments into a single prompt for your coding agent (Claude Code, Codex, or anything else that takes a prompt).

cd your-repo
npx reviewui

Opens a review UI at http://localhost:41096 comparing your current branch against main/master. Browse the diff (final result, commit by commit, or the work you haven't committed yet), leave comments on lines or ranges, then click Generate Prompt - the assembled feedback is copied to your clipboard and printed to the terminal, ready to paste into Claude Code, Codex, or any other agent.

Requires Node 18+ and git on your PATH. Nothing to install and nothing to configure.

What you get

• Review work you haven't committed yet. Uncommitted changes show up as the newest entry in the commit bar, with no id, and the default view includes them. Nothing reloads on its own: Refresh re-reads the repo when you ask. Files git doesn't track yet can't appear in a diff, so they're counted above the file tree instead - git add them to bring them into the review.
• Side-by-side or unified diff, with only the words that changed highlighted.
• Syntax highlighting that covers extensionless files like Dockerfile too.
• Pick any base and compare branch, not just the default guess.
• Review the whole branch at once or step through it commit by commit.
• Widen the context around a file's changes from 3 lines to 20 to the whole file.
• Hide whitespace-only changes when a branch carries a formatting pass.
• Filter the file tree by name, hide files you've marked viewed, or show only the ones you commented on.
• Tag each comment must-fix, question or nit, so your agent knows what blocks.
• Keyboard navigation: j/k between files, v to mark viewed, / to filter, g to generate, ? for the full list.
• Line and range comments, plus an overall summary, bundled into one prompt.
• Light and dark themes.

Options

npx reviewui --help

| Flag | Effect | | --------------- | ------------------------------------------------------------------ | | --port <n> | Pin an exact port. Fails if taken; unset, it auto-increments. | | --base <ref> | Branch, tag or commit to compare against. Default main/master. | | --no-open | Do not open a browser. | | -h, --help | Show usage. | | -v, --version | Show the version. |

REVIEWUI_PORT and REVIEWUI_NO_OPEN do the same as --port and --no-open. A flag wins over the matching environment variable, and a --base that does not resolve fails at startup rather than in the browser.

The server binds to 127.0.0.1 only, keeps comments in memory for the session, and never writes into the repository it is reviewing.

Development

npm install
npm run build        # build the web UI into web/dist
npm test             # HTTP API tests against a fixture repo, plus unit tests
node server/index.js # run from inside any git repo
npm run dev:web      # Vite dev server (proxies /api to :41096)