head to head · open source
authelia vs openGym
authelia has 29,526 GitHub stars, 1,534 forks, 137 open issues and last shipped 2 days ago. openGym has 19,396 stars, 2,582 forks, 109 open issues and last shipped 2 days ago. authelia leads on adoption by 52% (29,526 vs 19,396 stars). authelia is written in Go under Apache-2.0; openGym is written in JavaScript under AGPL-3.0. authelia has attracted 5% as many forks as stars, openGym 13%. openGym was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (docker, 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
| authelia | openGym | |
|---|---|---|
| GitHub stars | ★ 30K | ★ 19K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | JavaScript |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 1.5K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick authelia if
- You weight community size — 30K 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 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 authelia
<img alt="SLSA 3" src="
read the full authelia overview →
About openGym
A self hosted gym & body weight tracker you actually own. Plan your week, run guided workouts, track every set and your body weight over time — on your phone, synced across devices, behind your own passkey login. No account on someone else's server, no subscription, no ads. Just docker compose up . Home — today's workout & weight Guided workout — animated demos & sets Stats — heatmap, charts & PRs 🌐 opengym.duarte santos.ch · 📦 Source on GitHub · 🦊 GitLab mirror Screenshots, docs and the APK download live on the site. Want to poke at it first? The in browser demo is the real app with example data — no…
read the full openGym overview →
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Frequently asked questions
Is authelia or openGym more popular?
authelia has 29,526 GitHub stars and openGym has 19,396. authelia has the larger community by that measure.
Are authelia and openGym free?
Both are open source. authelia is licensed under Apache-2.0 and openGym under AGPL-3.0. Neither carries a licence fee.
What is the difference between authelia and openGym?
authelia 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, authelia or openGym?
Choose authelia if you want the larger community (29,526 stars) or its Apache-2.0 licence terms. Choose openGym if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.