head to head · open source
vaultwarden vs 2FAS
vaultwarden has 67,795 GitHub stars, 3,228 forks, 83 open issues and last shipped 6 days ago. 2FAS has 1,515 stars, 130 forks, 125 open issues and last shipped 4 days ago. vaultwarden leads on adoption by 4,375% (67,795 vs 1,515 stars). vaultwarden is written in Rust under AGPL-3.0; 2FAS is written in Kotlin under GPL-3.0. vaultwarden has attracted 5% as many forks as stars, 2FAS 9%. 2FAS 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.
← all 13541 open source comparisons
Side by side
| vaultwarden | 2FAS | |
|---|---|---|
| GitHub stars | ★ 68K | ★ 1.5K |
| License | AGPL-3.0 | GPL-3.0 |
| Written in | Rust | Kotlin |
| Last push | 2026-09-13 | 2026-09-15 |
| Forks | ⑂ 3.2K | ⑂ 130 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick vaultwarden if
- You weight community size — 68K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick 2FAS if
- You want the 2FAS 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 2FAS fits your workflow better
About vaultwarden
Vaultwarden is an unofficial, Bitwarden compatible server implementation of the Bitwarden Client API written in Rust, aimed at self hosters who want to run their own vault backend for the official Bitwarden clients without the resource demands of the official service.
read the full vaultwarden overview →
About 2FAS
2FAS is an open source Android application for two factor authentication, and its listing describes it as a local first 2FA authenticator and password manager. The project lives in the password and secret management ecosystem, and the repository contains the source code for the 2FAS Auth Android app, written in Kotlin and licensed under the GNU General Public License v3.0. The README presents 2FAS as an authentication method that adds a second factor, such as a one time password shown on a phone, alongside a username and password.
More in Productivity & Utilities
Related comparisons
More Password & Secret Management projects
Compare either of these against the rest of the Password & Secret Management field.
Frequently asked questions
Is vaultwarden or 2FAS more popular?
vaultwarden has 67,795 GitHub stars and 2FAS has 1,515. vaultwarden has the larger community by that measure.
Are vaultwarden and 2FAS free?
Both are open source. vaultwarden is licensed under AGPL-3.0 and 2FAS under GPL-3.0. Neither carries a licence fee.
What is the difference between vaultwarden and 2FAS?
vaultwarden is written in Rust and 2FAS 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, vaultwarden or 2FAS?
Choose vaultwarden if you want the larger community (67,795 stars) or its AGPL-3.0 licence terms. Choose 2FAS if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.