2-Factor Authentication
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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.
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Free, secure and open source authenticator app for Android. Has a backup/ restore feature and a customisable UI with dark mode
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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
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An easy-to-use, open-source two-factor authentication app designed specifically for iOS
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Simple, native, open source 2-FA Client for iOS, which never connects to the internet - built by @mattrubin.me
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A native, lightweight and secure one-time-password (OTP) client built for iOS; Raivo OTP! - built by @tijme
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Portable, encrypted desktop authenticator app for Microsoft Windows. With useful features, like hotkeys and some additional security tools, WinAuth is a great companion authenticator for desktop power-users. It's open source and well-established (since mid-2010)
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Rust-based OTP authenticator. Has native With GNOME Shell integration. Also available through flathub.
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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 Authenticator Pro vs Tofu vs Authenticator vs Raivo OTP vs WinAuth vs Authenticator GNOME vs Authenticator CC 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
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