head to head · open source
open-code-review vs twinny
open-code-review has 49,579 GitHub stars, 3,638 forks, 160 open issues and last shipped 2 days ago. twinny has 3,692 stars, 240 forks, 48 open issues and last shipped 5 days ago. open-code-review leads on adoption by 1,243% (49,579 vs 3,692 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 7%. 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 | ★ 50K | ★ 3.7K |
| License | Apache-2.0 | MIT |
| Written in | Go | TypeScript |
| Last push | 2026-11-06 | 2026-11-03 |
| Forks | ⑂ 3.6K | ⑂ 240 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick open-code-review if
- You weight community size — 50K 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
OpenCodeReview English 简体中文 日本語 한국어 Русский What is Open Code Review? Open Code Review is an AI powered code review CLI tool. It originated as Alibaba Group's internal official AI code review assistant — over the past two years, it has served tens of thousands of developers and identified millions of code defects. After thorough validation at massive scale, we incubated it into an open source project for the community. Simply configure a model endpoint to get started. It reads Git diffs, sends changed files to a configurable LLM via an agent with tool use capabilities, and generates structured review comments…
read the full open-code-review overview →
About twinny
twinny The AI coding assistant for Visual Studio Code that stays inside your network. Code completion, inline edits, chat, code review and more, on a model server you choose: on your machine, on another of your devices, on a hosted API, or on one gateway your whole team shares. Free, open source, MIT licensed, no telemetry, no sign in. Install from the Marketplace · Documentation · What's new · Changelog · Teams · 中文 · Português (BR) For teams: one gateway on your network serves every developer's VS Code, with a key per person, usage, policy and an admin page. npx twinny server quickstart sets it up. Free for…
read the full twinny overview →
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Frequently asked questions
Is open-code-review or twinny more popular?
open-code-review has 49,579 GitHub stars and twinny has 3,692. 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 (49,579 stars) or its Apache-2.0 licence terms. Choose twinny if its feature set, stack or MIT licence fits better. Both are self-hostable.