head to head · open source
opa vs TeamPass
opa has 12,411 GitHub stars, 1,705 forks, 310 open issues and last shipped yesterday. TeamPass has 1,870 stars, 571 forks, 4 open issues and last shipped yesterday. opa leads on adoption by 564% (12,411 vs 1,870 stars). opa is written in Go under Apache-2.0; TeamPass is written in PHP under GPL-3.0. opa has attracted 14% as many forks as stars, TeamPass 31%. opa was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (compliance), 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
| opa | TeamPass | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 1.9K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Go | PHP |
| Last push | 2026-10-28 | 2026-10-28 |
| Forks | ⑂ 1.7K | ⑂ 571 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick opa if
- You weight community size — 12K 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 TeamPass if
- You want the TeamPass feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches PHP
- You evaluated both and TeamPass fits your workflow better
About opa
Open Policy Agent Open Policy Agent (OPA) is an open source, general purpose policy engine that enables unified, context aware policy enforcement across the entire stack. OPA is proud to be a graduated project in the Cloud Native Computing Foundation (CNCF) landscape. For details read the CNCF announcement. Get started with OPA Write your first Rego policy with the Rego Playground or use it to share your work with others for feedback and support. Have a look at the Access Control examples if you're not sure where to start. Install the VS Code extension to get started locally with live diagnostics, debugging and…
About TeamPass
Teampass Self hosted password management your whole team can trust Folder level access control · authenticated AES 256 GCM encryption · compliance evidence Your secrets never leave your infrastructure. 🌐 teampass.net · 📖 Documentation · 💬 Discussions · 🐳 Docker Hub Contents About Who it's for Security Features Get started Documentation Languages Community Support Teampass License About Teampass is an open source credential vault you run yourself. No account to create, no company behind the curtain holding your data — just a PHP/MySQL application on your own server, with folder level access control, per user…
read the full TeamPass overview →
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Frequently asked questions
Is opa or TeamPass more popular?
opa has 12,411 GitHub stars and TeamPass has 1,870. opa has the larger community by that measure.
Are opa and TeamPass free?
Both are open source. opa is licensed under Apache-2.0 and TeamPass under GPL-3.0. Neither carries a licence fee.
What is the difference between opa and TeamPass?
opa is written in Go and TeamPass in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, opa or TeamPass?
Choose opa if you want the larger community (12,411 stars) or its Apache-2.0 licence terms. Choose TeamPass if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.