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CodeRabbit does 5 jobs: automated pull-request review comments, review before pushing (CLI or IDE), pull-request summaries and change explanations, chat with the reviewer about a PR, automated test generation. Most projects replace one or two of them, so pick the job you actually need.
We track 5 open-source alternatives to CodeRabbit, but none currently has confirmed commercial use, local running and no paid services together. None of the 5 projects we track covers all 5 CodeRabbit jobs, so most people combine two or more.
Simple GitHub bot or Action that posts LLM review comments on every new or updated pull request.
Alibaba's AI code review CLI that combines deterministic pipelines with an LLM agent for line-level review comments, locally or in CI.
Community-owned open-source PR reviewer with /review, /describe, /improve and /ask commands for GitHub, GitLab, Bitbucket, Azure DevOps and Gitea.
Bring-your-own-key GitHub bot that runs Claude Code, Codex or OpenCode in your GitHub Actions to review PRs, fix CI and triage issues.
Extendable code-review agent (formerly Code Review GPT) that explores your codebase and comments on PRs in CI or reviews staged changes locally.
No project meets all of your requirements. The list below shows what you'd need to relax.
We hid them because something is missing, unknown or conflicting. Here's what.
Yes. PR-Agent, Open Code Review and ChatGPT-CodeReview are free to download and run on your own computer without paid API keys. Each covers only part of what CodeRabbit does, so check which job you need.
Yes, with Pullfrog (MIT), Open Code Review (Apache-2.0) and PR-Agent (MIT). Check the hardware notes and licence conditions on each page before you start.
Yes, with Open Code Review (Apache-2.0) and Shippie (MIT). Check the hardware notes and licence conditions on each page before you start.
Confirmed: ChatGPT-CodeReview, Open Code Review, PR-Agent and Shippie. With conditions: Pullfrog. This is not legal advice; read each licence.
Not as of 2026-10-15. Automated pull-request review comments, review before pushing (CLI or IDE), pull-request summaries and change explanations, chat with the reviewer about a PR and automated test generation are covered by different projects.