head to head · open source
crit vs flock
crit has 1,268 GitHub stars, 106 forks, 22 open issues and last shipped 2 days ago. flock has 501 stars, 6 forks, 2 open issues and last shipped 9 days ago. crit leads on adoption by 153% (1,268 vs 501 stars). crit is written in Go under MIT; flock is written in Go under MIT. crit has attracted 8% as many forks as stars, flock 1%. crit 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, llm), 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
| crit | flock | |
|---|---|---|
| GitHub stars | ★ 1.3K | ★ 501 |
| License | MIT | MIT |
| Written in | Go | Go |
| Last push | 2026-11-02 | 2026-10-26 |
| Forks | ⑂ 106 | ⑂ 6 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick crit if
- You weight community size — 1.3K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick flock if
- You want the flock feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and flock fits your workflow better
About crit
Crit Review and comment on plans, code diffs, frontend elements and send feedback directly to your agent. Adaptive UI for each type of output For agents, plans and code are all the same it's just text, but for us, humans, reviewing generated plans and reviewing web application are two very different activities. Crit adds a proper interface for each type of output and lets you point at the exact thing that is wrong and leave a comment for the agent to fix: crit plan.md renders a markdown file with proper formatting and review UI crit auto detects git changes and shows syntax highlighted diffs for local review…
About flock
English · Русский · 中文 · Español · Deutsch · Français · Português (BR) · 日本語 Flock Run a Claude Code AI dev team on your server and drive it from chat. Describe a feature in Telegram, VK or LO; the team plans it, builds it on a branch, tests it, reviews it, and opens a PR — each chat in its own isolated workspace. It runs on your Claude Pro/Max subscription (no per token billing) or an Anthropic API key, ships as prebuilt Docker images (no build step), and keeps every chat in its own sandboxed workspace. Quick start (Docker) That pulls the prebuilt image ghcr.io/duckbugio/flock telegram — no build, no Ansible —…
read the full flock overview →
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Frequently asked questions
Is crit or flock more popular?
crit has 1,268 GitHub stars and flock has 501. crit has the larger community by that measure.
Are crit and flock free?
Both are open source. crit is licensed under MIT and flock under MIT. Neither carries a licence fee.
What is the difference between crit and flock?
crit is written in Go and flock 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, crit or flock?
Choose crit if you want the larger community (1,268 stars) or its MIT licence terms. Choose flock if its feature set, stack or MIT licence fits better. Both are self-hostable.