FreeOTPPlus is a code project with source, releases, documentation, or setup notes.
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.
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.
2FAS is an open-source and source-available authenticator app and password manager. It stores passwords and 2FA tokens locally on the device, requires no accounts, and offers a browser extension, cloud and manual backup, and token customization. A free Pass tier is available, and an Unlimited tier costs $9.99 per year.
Sentinel is a studio that builds privacy-first apps for iOS, macOS, Android and the web. Its listed apps include Authenticator for two-factor authentication, Squidly for merging wallet and exchange balances, Crypto Warden for storing crypto seed phrases in iCloud Keychain, Turbo Jobs for CV tailoring and a Quotes App.
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.
KeePassXC is a cross-platform, open-source password manager that stores usernames, passwords, URLs, attachments and notes in an offline encrypted file. It runs on Windows, macOS and Linux and is licensed under GPLv3.
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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.
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.
2FAS is an open-source and source-available authenticator app and password manager. It stores passwords and 2FA tokens locally on the device, requires no accounts, and offers a browser extension, cloud and manual backup, and token customization. A free Pass tier is available, and an Unlimited tier costs $9.99 per year.
Sentinel is a studio that builds privacy-first apps for iOS, macOS, Android and the web. Its listed apps include Authenticator for two-factor authentication, Squidly for merging wallet and exchange balances, Crypto Warden for storing crypto seed phrases in iCloud Keychain, Turbo Jobs for CV tailoring and a Quotes App.
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.
KeePassXC is a cross-platform, open-source password manager that stores usernames, passwords, URLs, attachments and notes in an offline encrypted file. It runs on Windows, macOS and Linux and is licensed under GPLv3.
