What this collection emphasizes
- Open-source status
- Maintenance notes
- Import/export
- Backup model
Choose an authenticator with source-code transparency.
Open Source Authenticator Apps
Find open-source authenticator apps with transparent code, backup options, and platform tradeoffs.
Open-source statusMaintenance notesImport/exportBackup model 6 apps
2
2FAS
Open-source posture and optional backup model make it strong for users who want transparency.
iosandroidbrowser free App export and migration support
P
Proton Authenticator
Good fit for users who want encrypted sync and desktop support from a privacy brand.
iosandroidwindowsmacoslinux free Import from common authenticator apps
E
Ente Auth
Strong transparency and cross-device coverage; review account recovery model before relying on sync.
iosandroidwindowsmacoslinux free Import and export support
A
Aegis Authenticator
Excellent for users who want local control and are willing to manage their own backups.
android free Encrypted vault export and imports from multiple apps
B
Bitwarden Authenticator
Avoid storing passwords and TOTP for the same account in one place unless that fits your risk model.
iosandroid free Import support varies by version
R
Raivo OTP
Check current maintenance status and ownership before adopting for high-risk accounts.
ios free Encrypted export support