head to head · open source
Keycloak vs KeePassDX
Keycloak has 36,876 GitHub stars, 8,945 forks, 3,292 open issues and last shipped today. KeePassDX has 7,340 stars, 403 forks, 541 open issues and last shipped 5 days ago. Keycloak leads on adoption by 402% (36,876 vs 7,340 stars). Keycloak is written in Java under Apache-2.0; KeePassDX is written in Kotlin under GPL-3.0. Keycloak has attracted 24% as many forks as stars, KeePassDX 5%. Keycloak was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Keycloak | KeePassDX | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 7.3K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Java | Kotlin |
| Last push | 2026-09-20 | 2026-09-15 |
| Forks | ⑂ 8.9K | ⑂ 403 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Keycloak if
- You weight community size — 37K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick KeePassDX if
- You want the KeePassDX feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Kotlin
- You evaluated both and KeePassDX fits your workflow better
About Keycloak
Keycloak is an open source identity and access management server, written in Java and licensed under Apache 2.0, that adds authentication and access control to applications and services, and it is intended for teams and organisations that want to own their user store rather than rent one.
read the full Keycloak overview →
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 →
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Frequently asked questions
Is Keycloak or KeePassDX more popular?
Keycloak has 36,876 GitHub stars and KeePassDX has 7,340. Keycloak has the larger community by that measure.
Are Keycloak and KeePassDX free?
Both are open source. Keycloak is licensed under Apache-2.0 and KeePassDX under GPL-3.0. Neither carries a licence fee.
What is the difference between Keycloak and KeePassDX?
Keycloak is written in Java and KeePassDX in Kotlin. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Keycloak or KeePassDX?
Choose Keycloak if you want the larger community (36,876 stars) or its Apache-2.0 licence terms. Choose KeePassDX if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.