head to head · open source
pr-agent vs reviewdog
pr-agent has 14,462 GitHub stars, 2,065 forks, 102 open issues and last shipped 2 days ago. reviewdog has 9,719 stars, 512 forks, 131 open issues and last shipped 2 days ago. pr-agent leads on adoption by 49% (14,462 vs 9,719 stars). pr-agent is written in Python under MIT; reviewdog is written in Go under MIT. pr-agent has attracted 14% as many forks as stars, reviewdog 5%. reviewdog was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (code-review), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| pr-agent | reviewdog | |
|---|---|---|
| GitHub stars | ★ 14K | ★ 9.7K |
| License | MIT | MIT |
| Written in | Python | Go |
| Last push | 2026-11-03 | 2026-11-03 |
| Forks | ⑂ 2.1K | ⑂ 512 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick pr-agent if
- You weight community size — 14K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick reviewdog if
- You want the reviewdog feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and reviewdog fits your workflow better
About pr-agent
The Original Open Source PR Reviewer This repository contains the open source PR Agent Project. It is not the Qodo offering for open source projects. PR Agent is an open source, AI powered code review agent and a community maintained legacy project of Qodo. It is distinct from Qodo's primary AI code review offering, which provides a feature rich, context aware experience. Qodo offers a free version for open source projects and integrates seamlessly with GitHub, GitLab, Bitbucket, and Azure DevOps for high quality automated reviews. Sponsors PR Agent is a community maintained open source project, with its ongoing…
read the full pr-agent overview →
About reviewdog
reviewdog A code review dog who keeps your codebase healthy. reviewdog provides a way to post review comments to code hosting services, such as GitHub, automatically by integrating with any linter tools with ease. It uses an output of lint tools and posts them as a comment if findings are in the diff of patches to review. reviewdog also supports running in the local environment to filter the output of lint tools by diff. design doc Table of Contents Installation Input Format 'errorformat' Available pre defined 'errorformat' Reviewdog Diagnostic Format (RDFormat) Diff checkstyle format SARIF format Code…
read the full reviewdog overview →
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Frequently asked questions
Is pr-agent or reviewdog more popular?
pr-agent has 14,462 GitHub stars and reviewdog has 9,719. pr-agent has the larger community by that measure.
Are pr-agent and reviewdog free?
Both are open source. pr-agent is licensed under MIT and reviewdog under MIT. Neither carries a licence fee.
What is the difference between pr-agent and reviewdog?
pr-agent is written in Python and reviewdog in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, pr-agent or reviewdog?
Choose pr-agent if you want the larger community (14,462 stars) or its MIT licence terms. Choose reviewdog if its feature set, stack or MIT licence fits better. Both are self-hostable.