head to head · open source
KeePassDX vs webauthn4j
KeePassDX has 7,636 GitHub stars, 429 forks, 541 open issues and last shipped 8 days ago. webauthn4j has 599 stars, 101 forks, 16 open issues and last shipped 7 days ago. KeePassDX leads on adoption by 1,175% (7,636 vs 599 stars). KeePassDX is written in Kotlin under GPL-3.0; webauthn4j is written in Java under Apache-2.0. KeePassDX has attracted 6% as many forks as stars, webauthn4j 17%. webauthn4j was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (passkey, 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 | webauthn4j | |
|---|---|---|
| GitHub stars | ★ 7.6K | ★ 599 |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Kotlin | Java |
| Last push | 2026-11-01 | 2026-11-02 |
| Forks | ⑂ 429 | ⑂ 101 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick KeePassDX if
- You weight community size — 7.6K 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 webauthn4j if
- You want the webauthn4j feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and webauthn4j fits your workflow better
About KeePassDX
Android KeePassDX Lightweight password safe and manager for Android , KeePassDX allows editing encrypted data in a single file in KeePass format and fill in the forms in a secure way. Features Passkeys for authentication and local storage of private keys . Biometric recognition for fast unlocking (fingerprint / face unlock / …). One Time Password management (HOTP / TOTP) for two factor authentication (2FA). Autofill for easy form filling with passwords. Magikeyboard to efficiently fill in any field. Create encrypted database files . Organisation of credentials by entry and in group trees. Allows opening and…
read the full KeePassDX overview →
About webauthn4j
WebAuthn4J A portable Java library for WebAuthn(Passkeys) server side verification Conformance All mandatory test cases and optional Android Key attestation test cases of FIDO2 Test Tools provided by FIDO Alliance are passed. Supported Attestation statement format All attestation statement formats are supported. Packed attestation FIDO U2F attestation Android Key attestation Android SafetyNet attestation TPM attestation Apple Anonymous attestation None attestation Apple App Attest attestation Kotlin friendly Although WebAuthn4J is written in Java, public members are marked by NotNull or Nullable annotation to…
read the full webauthn4j overview →
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Frequently asked questions
Is KeePassDX or webauthn4j more popular?
KeePassDX has 7,636 GitHub stars and webauthn4j has 599. KeePassDX has the larger community by that measure.
Are KeePassDX and webauthn4j free?
Both are open source. KeePassDX is licensed under GPL-3.0 and webauthn4j under Apache-2.0. Neither carries a licence fee.
What is the difference between KeePassDX and webauthn4j?
KeePassDX is written in Kotlin and webauthn4j in Java. 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 webauthn4j?
Choose KeePassDX if you want the larger community (7,636 stars) or its GPL-3.0 licence terms. Choose webauthn4j if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.