head to head · open source
plannotator vs zeroshot
plannotator has 9,825 GitHub stars, 735 forks, 155 open issues and last shipped yesterday. zeroshot has 2,090 stars, 198 forks, 3 open issues and last shipped yesterday. plannotator leads on adoption by 370% (9,825 vs 2,090 stars). plannotator is written in TypeScript under Apache-2.0; zeroshot is written in Rust under MIT. plannotator has attracted 7% as many forks as stars, zeroshot 9%. plannotator was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (claude-code, code-review, codex), 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
| plannotator | zeroshot | |
|---|---|---|
| GitHub stars | ★ 9.8K | ★ 2.1K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | Rust |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 735 | ⑂ 198 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick plannotator if
- You weight community size — 9.8K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick zeroshot if
- You want the zeroshot feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and zeroshot fits your workflow better
About plannotator
Everything you need to annotate and stay in the loop with your agents Markdown Review • Code Review • HTML Artifacts Annotate plans, specs, markdown, and HTML before implementation. Review diffs and PRs. Send feedback to your agent. Watch the og demo · Installation guide · Official site · Visual HTML Skills · Herdr Annotate Plannotator Plannotator is a local, browser based review surface for AI coding agents: Claude Code, Codex, Copilot CLI, Gemini CLI, OpenCode, Kiro, Droid, Amp, and Pi. It plugs directly into your agent through its hooks and commands. When the agent proposes a plan, html, or finishes writing…
read the full plannotator overview →
About zeroshot
Zeroshot The agent that writes the code should not be the one that decides it works. Zeroshot turns a software goal into an explicit multi agent graph: one agent implements, independent agents review, failures go back to a bounded repair loop, and nothing is delivered until the graph's checks pass. The implementing agent never approves its own work. Use the built in graph or bring your own topology. Add reviewers, tests, and repair loops, then save the setup as a profile for the next task. Opcore works alongside it: Opcore checks each edit while an agent writes code, and Zeroshot has independent agents review…
read the full zeroshot overview →
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Frequently asked questions
Is plannotator or zeroshot more popular?
plannotator has 9,825 GitHub stars and zeroshot has 2,090. plannotator has the larger community by that measure.
Are plannotator and zeroshot free?
Both are open source. plannotator is licensed under Apache-2.0 and zeroshot under MIT. Neither carries a licence fee.
What is the difference between plannotator and zeroshot?
plannotator is written in TypeScript and zeroshot in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, plannotator or zeroshot?
Choose plannotator if you want the larger community (9,825 stars) or its Apache-2.0 licence terms. Choose zeroshot if its feature set, stack or MIT licence fits better. Both are self-hostable.