head to head · open source
open-code-review vs twinny
open-code-review has 39,835 GitHub stars, 2,861 forks, 160 open issues and last shipped today. twinny has 3,650 stars, 230 forks, 48 open issues and last shipped yesterday. open-code-review leads on adoption by 991% (39,835 vs 3,650 stars). open-code-review is written in Go under Apache-2.0; twinny is written in TypeScript under MIT. open-code-review has attracted 7% as many forks as stars, twinny 6%. open-code-review was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (code-review, code-review-assistant), 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
| open-code-review | twinny | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 3.6K |
| License | Apache-2.0 | MIT |
| Written in | Go | TypeScript |
| Last push | 2026-09-23 | 2026-09-22 |
| Forks | ⑂ 2.9K | ⑂ 230 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick open-code-review if
- You weight community size — 40K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick twinny if
- You want the twinny feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and twinny fits your workflow better
About open-code-review
Open Code Review is an Apache 2.0, Go based AI code review CLI that reads Git diffs, sends changed files to a configurable LLM through a tool using agent, and returns line level review comments, built for developers and platform teams that want large scale review automated inside infrastructure they control.
read the full open-code-review overview →
About twinny
twinny is a free, MIT licensed AI coding assistant for Visual Studio Code that brings code completion, chat, inline edits, code review and commit messages to individual developers and teams running a model server they choose — local, on another device, hosted, or shared as one team gateway.
read the full twinny overview →
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Frequently asked questions
Is open-code-review or twinny more popular?
open-code-review has 39,835 GitHub stars and twinny has 3,650. open-code-review has the larger community by that measure.
Are open-code-review and twinny free?
Both are open source. open-code-review is licensed under Apache-2.0 and twinny under MIT. Neither carries a licence fee.
What is the difference between open-code-review and twinny?
open-code-review is written in Go and twinny in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, open-code-review or twinny?
Choose open-code-review if you want the larger community (39,835 stars) or its Apache-2.0 licence terms. Choose twinny if its feature set, stack or MIT licence fits better. Both are self-hostable.