head to head · open source
plannotator vs pstack-claude
plannotator has 9,825 GitHub stars, 735 forks, 155 open issues and last shipped yesterday. pstack-claude has 3,791 stars, 346 forks, 1 open issues and last shipped yesterday. plannotator leads on adoption by 159% (9,825 vs 3,791 stars). plannotator is written in TypeScript under Apache-2.0; pstack-claude is written in TypeScript under MIT. plannotator has attracted 7% as many forks as stars, pstack-claude 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 | pstack-claude | |
|---|---|---|
| GitHub stars | ★ 9.8K | ★ 3.8K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 735 | ⑂ 346 |
| 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 pstack-claude if
- You want the pstack-claude feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and pstack-claude 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 pstack-claude
pstack Lauren Tan's pstack is an opinionated Cursor skill stack that improves agent outcomes. This is a port for Claude Code, Codex, Pi, GitHub Copilot and other agent harnesses. It tracks upstream and also carries named policy forks, each declared in tools/forks.json . Tell poteto mode your goal and it will invoke the correct workflow for the task. It keeps your code concise, simple and verified. For concurrency bugs and invariants that tests cannot reach, see the separate agent formal verify plugin, which adds TLA+ model checking and Lean proofs. Install Claude Code Run in Claude Code: Codex Run in your…
read the full pstack-claude overview →
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Frequently asked questions
Is plannotator or pstack-claude more popular?
plannotator has 9,825 GitHub stars and pstack-claude has 3,791. plannotator has the larger community by that measure.
Are plannotator and pstack-claude free?
Both are open source. plannotator is licensed under Apache-2.0 and pstack-claude under MIT. Neither carries a licence fee.
What is the difference between plannotator and pstack-claude?
plannotator is written in TypeScript and pstack-claude 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, plannotator or pstack-claude?
Choose plannotator if you want the larger community (9,825 stars) or its Apache-2.0 licence terms. Choose pstack-claude if its feature set, stack or MIT licence fits better. Both are self-hostable.