head to head · open source
KeePassDX vs openGym
KeePassDX has 7,347 GitHub stars, 403 forks, 541 open issues and last shipped 7 days ago. openGym has 1,056 stars, 260 forks, 109 open issues and last shipped 2 days ago. KeePassDX leads on adoption by 596% (7,347 vs 1,056 stars). KeePassDX is written in Kotlin under GPL-3.0; openGym is written in JavaScript under AGPL-3.0. KeePassDX has attracted 5% as many forks as stars, openGym 25%. openGym 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
| KeePassDX | openGym | |
|---|---|---|
| GitHub stars | ★ 7.3K | ★ 1.1K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | Kotlin | JavaScript |
| Last push | 2026-09-15 | 2026-09-20 |
| Forks | ⑂ 403 | ⑂ 260 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick KeePassDX if
- You weight community size — 7.3K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Kotlin
- 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 KeePassDX
KeePassDX is a free, open source and ad free password and passkey manager for Android that keeps credentials in a single encrypted local database file in KeePass format and fills login forms through autofill and its own keyboard.
read the full KeePassDX 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 KeePassDX or openGym more popular?
KeePassDX has 7,347 GitHub stars and openGym has 1,056. KeePassDX has the larger community by that measure.
Are KeePassDX and openGym free?
Both are open source. KeePassDX is licensed under GPL-3.0 and openGym under AGPL-3.0. Neither carries a licence fee.
What is the difference between KeePassDX and openGym?
KeePassDX is written in Kotlin 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, KeePassDX or openGym?
Choose KeePassDX if you want the larger community (7,347 stars) or its GPL-3.0 licence terms. Choose openGym if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.