Proton Authenticator
Secure, end-to-end encrypted, open source, and available on every device
| 🔒 | Avg daily installs |
|---|---|
| 🔒 | Downloads est., monthly |
| 100K+ | Installs 🔒 More accurate value in Pro |
| 2 months | Age |
| 29 days ago | Updated |
| July 28, 2025 | Release date |
| 3K | Ratings |
| 160 | Reviews |
| 47Mb | Size |
Protect your accounts with Proton Authenticator, a private and secure cross-device two-factor authentication (2FA) that works offline. Created by Proton, the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass.
Proton Authenticator is open-source, end-to-end encrypted, and backed by Swiss privacy laws. It’s the safest way to generate and store your one-time passwords (TOTP) for 2FA Login.
Why Proton Authenticator?
- Free to use: No Proton account required, ad-free.
- Offline support, on mobile and desktop apps
- Sync your 2FA codes to all your devices with end-to-end encryption.
- Enable automatic backups for peace of mind
- Easily import from other 2FA apps, or export from Proton Authenticator.
- Protect your account with biometrics or a PIN code.
- Open-source transparency, verifiable code.
- Protected by Switzerland’s privacy laws.
Trusted by millions. Built by Proton.
Take control of your digital security today.