head to head · open source
paca vs opentakeoff
paca has 1,924 GitHub stars, 166 forks, 8 open issues and last shipped today. opentakeoff has 545 stars, 125 forks, 8 open issues and last shipped 3 days ago. paca leads on adoption by 253% (1,924 vs 545 stars). paca is written in Go under Apache-2.0; opentakeoff is written in TypeScript under AGPL-3.0. paca has attracted 9% as many forks as stars, opentakeoff 23%. paca was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-agent, mcp), 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
| paca | opentakeoff | |
|---|---|---|
| GitHub stars | ★ 1.9K | ★ 545 |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | TypeScript |
| Last push | 2026-10-14 | 2026-10-11 |
| Forks | ⑂ 166 | ⑂ 125 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick paca if
- You weight community size — 1.9K 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 opentakeoff if
- You want the opentakeoff feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and opentakeoff fits your workflow better
About paca
Paca is a free, open source, self hosted, AI native project management platform in which human Scrum teams and AI agents work as equal teammates on the same board, the same sprints, and the same goals.
About opentakeoff
OpenTakeoff is an open source (AGPL 3.0) PDF takeoff engine for construction and flooring estimating that runs entirely in the browser and exposes 53 MCP tools so an AI agent can drive the same measurements a human estimator does.
read the full opentakeoff overview →
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Frequently asked questions
Is paca or opentakeoff more popular?
paca has 1,924 GitHub stars and opentakeoff has 545. paca has the larger community by that measure.
Are paca and opentakeoff free?
Both are open source. paca is licensed under Apache-2.0 and opentakeoff under AGPL-3.0. Neither carries a licence fee.
What is the difference between paca and opentakeoff?
paca is written in Go and opentakeoff 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, paca or opentakeoff?
Choose paca if you want the larger community (1,924 stars) or its Apache-2.0 licence terms. Choose opentakeoff if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.