head to head · open source
pocket-id vs openGym
pocket-id has 9,241 GitHub stars, 312 forks, 98 open issues and last shipped yesterday. openGym has 1,056 stars, 260 forks, 109 open issues and last shipped 2 days ago. pocket-id leads on adoption by 775% (9,241 vs 1,056 stars). pocket-id is written in Go under BSD-2-Clause; openGym is written in JavaScript under AGPL-3.0. pocket-id has attracted 3% as many forks as stars, openGym 25%. pocket-id was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (passkeys), 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
| pocket-id | openGym | |
|---|---|---|
| GitHub stars | ★ 9.2K | ★ 1.1K |
| License | BSD-2-Clause | AGPL-3.0 |
| Written in | Go | JavaScript |
| Last push | 2026-09-21 | 2026-09-20 |
| Forks | ⑂ 312 | ⑂ 260 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick pocket-id if
- You weight community size — 9.2K stars and counting
- You want the BSD-2-Clause license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick openGym if
- You want the openGym feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and openGym fits your workflow better
About pocket-id
Pocket ID is a self hosted, OpenID Connect Certified™ and OAuth 2.0 provider, written in Go, that authenticates users with passkeys and passwords never, aimed at anyone who wants single sign on for their own applications without standing up a heavyweight identity platform.
read the full pocket-id overview →
About openGym
openGym is a self hosted, AGPL 3.0 gym and body weight tracker that runs on your own server, letting you plan weekly routines, log workouts with supersets, warm ups and cardio, and see which muscles are trained, fatigued or detrained — built for lifters and privacy minded self hosters who would rather run docker compose up than keep an account on someone else's service.
read the full openGym overview →
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Frequently asked questions
Is pocket-id or openGym more popular?
pocket-id has 9,241 GitHub stars and openGym has 1,056. pocket-id has the larger community by that measure.
Are pocket-id and openGym free?
Both are open source. pocket-id is licensed under BSD-2-Clause and openGym under AGPL-3.0. Neither carries a licence fee.
What is the difference between pocket-id and openGym?
pocket-id is written in Go and openGym in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, pocket-id or openGym?
Choose pocket-id if you want the larger community (9,241 stars) or its BSD-2-Clause licence terms. Choose openGym if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.