Stratum is a free and open-source two-factor authentication app for Android, formerly named Authenticator Pro. The source code is available on GitHub under the GPL 3.0 license. It supports TOTP, HOTP and mOTP accounts, offers encrypted backups, and does not require Internet access to function.
Tofu is an open-source two-factor authentication app for iOS. It generates one-time passwords using the HOTP and TOTP algorithms with 6 or 8 digits, requires no network connection, and stores account details in the iOS keychain. The source code is available on GitHub under the ISC license.
Aegis Authenticator is a free and open source Android app for managing two-step verification tokens. It stores tokens in an encrypted vault with optional biometric unlock, supports import and export from other 2FA apps, automatic backups, themes and icon packs.
2FAuth is a self-hosted OTP manager for individuals and teams. It stores, generates and organizes two-factor authentication codes in a web application, with QR code scanning, manual setup, import and export, and browser extensions. It supports multi-user management, isolated personal vaults and encrypted secrets storage.
AuthPass is a free and open-source KeePass-compatible password manager built with Flutter, available for Android, iOS, macOS, Linux and Windows. It loads and decrypts kdbx files using a password and/or key file, organizes credentials in groups and supports cloud sync via Google Drive, Dropbox or WebDAV. Fingerprint unlock and Android password auto-fill are offered.
KeePass is a free open source password manager that stores passwords in an encrypted database unlocked with a single master key. Database files can use AES-256, ChaCha20 and Twofish encryption. It supports password groups, search, auto-type and a plugin architecture, and the database is a single file that can be transferred between computers.
KeePassium is a KeePass password manager for iOS and macOS. It supports offline and online databases with two-way synchronization and password AutoFill, and its source code is available under the GPL v3 license.
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Tofu is an open-source two-factor authentication app for iOS. It generates one-time passwords using the HOTP and TOTP algorithms with 6 or 8 digits, requires no network connection, and stores account details in the iOS keychain. The source code is available on GitHub under the ISC license.
Aegis Authenticator is a free and open source Android app for managing two-step verification tokens. It stores tokens in an encrypted vault with optional biometric unlock, supports import and export from other 2FA apps, automatic backups, themes and icon packs.
2FAuth is a self-hosted OTP manager for individuals and teams. It stores, generates and organizes two-factor authentication codes in a web application, with QR code scanning, manual setup, import and export, and browser extensions. It supports multi-user management, isolated personal vaults and encrypted secrets storage.
AuthPass is a free and open-source KeePass-compatible password manager built with Flutter, available for Android, iOS, macOS, Linux and Windows. It loads and decrypts kdbx files using a password and/or key file, organizes credentials in groups and supports cloud sync via Google Drive, Dropbox or WebDAV. Fingerprint unlock and Android password auto-fill are offered.
KeePass is a free open source password manager that stores passwords in an encrypted database unlocked with a single master key. Database files can use AES-256, ChaCha20 and Twofish encryption. It supports password groups, search, auto-type and a plugin architecture, and the database is a single file that can be transferred between computers.
KeePassium is a KeePass password manager for iOS and macOS. It supports offline and online databases with two-way synchronization and password AutoFill, and its source code is available under the GPL v3 license.
