2-Factor Authentication
-
Free, secure and open source authenticator app for both iOS and Android. Supports creating encrypted backups and syncing between devices without the need for an account.
-
Free, secure and open source authenticator app for Android. Has a backup/ restore feature and a customisable UI with dark mode
-
Simple, native, open source 2-FA Client for iOS, which never connects to the internet - built by @mattrubin.me
-
-
Rust-based OTP authenticator. Has native With GNOME Shell integration. Also available through flathub.
-
Bitwarden Authenticator is a free and open-source app which stores and generates time-based codes for multi-factor authentication. It can be used with an online account to backup and sync your tokens across your devices (and access them via a web interface) in a secure, end-to-end encrypted fashion. It can also be used offline on a single device with no account necessary.
-
Chronos Authenticator is a free, open-source two-factor authentication app for iOS, designed to provide robust security and reliable backup options.
-
Ente Auth is a free and open-source app which stores and generates TOTP tokens. It can be used with an online account to backup and sync your tokens across your devices (and access them via a web interface) in a secure, end-to-end encrypted fashion. It can also be used offline on a single device with no account necessary.
-
Proton Authenticator is free, open source, and available for both iOS and Android. A Proton account is required to use Proton Authenticator. Existing 2FA codes can be imported from other popular apps such as Google Authenticator and LastPass.
-
Free and open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app
-
An easy-to-use, open-source two-factor authentication app designed specifically for iOS
Objective of this page
Find the best free, open source, E2E encrypted and private alternative to Google Authenticator, Authy, Microsoft Authenticator, LastPass Authenticator, Duo Mobile, now.
Compare 2FAS vs Aegis vs Stratum vs Tofu vs Authenticator vs Authenticator GNOME vs Authenticator CC vs Ente Auth vs Bitwarden Authenticator vs Proton Authenticator vs Chronos Authenticator vs
Discover the best 2-Factor Authentication tools for Android, iPhone, Linux, PC and Chrome to download now. And choose secure, self-hosted, peer-to-peer and independant alternatives in 2024
Stop the invasion of privacy from big tech, improve data security stay safe.
Notable Mentions
OTPClient (Linux), gauth (Self-Hosted, Web-based), Etopa (Android)
For KeePass users, TrayTop is a plugin for managing TOTP's - offline and compatible with Windows, Mac and Linux.
Notes
Check which websites support multi-factor authentication: 2fa.directory
Submit New Entry
Are we missing anything? You can help us improve this page, by submitting a new entry