OTP Auth is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The best free Windows alternative is Proton Authenticator, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to OTP Auth and 13 are free and available for Windows so hopefully you can find a suitable replacement. Other interesting free Windows alternatives to OTP Auth are Ente Auth, Authenticator Extension, 2fast and 2FAGuard.
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.
Generates and stores two-factor authentication tokens with device encryption, offers secure cloud backup, multi-device synchronization, offline mode, and import/export through QR, file, or manual input. Migration and restore tools reduce risk of token loss.
Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.
2fast (acronym for two factor authenticator supporting TOTP) is the first free, open source, two factor authenticator for Windows and Android with the ability to store the sensitive data encrypted at a place of your choice instead of a 3rd party cloud location.
Encrypted Windows app for managing 2FA codes with AEGIS-256 and Argon2id, supporting Windows Hello, portable use, multilingual interface, token import/export, QR code/manual entry, generic TOTP, local storage, and dark mode interface for enhanced security.
Protectimus Solutions provides a powerful multi-factor authentication service. We offer 2FA SaaS platform and on-premise version of the product which supports a great variety of TOTP tokens and program tokens for OTP delivery.
Allthenticator unifies digital and physical access with one smartphone-based identity. Users log in to systems and unlock doors via proximity. Supports SSH keys, passkeys, OTP, and peer-based recovery—all managed from a single admin dashboard.
Clockode is a minimal, and offline-only TOTP code generator that stores your authentication secrets in an encrypted local vault, keeping your two-factor codes private and accessible without needing an internet connection.
CryptoPhoto gives you a fast and safe way to log into your favorite participating web sites while enjoying leading-edge protection against phishing, malware attacks, and scamming.
Hermes offers a straightforward solution for overseeing two-factor authentication accounts (SHA1), providing support for a wide range of platforms, including Gmail, Dropbox, and thousands of other websites.
Invantive Authenticator is a two-step verification solution for use with TOTP-protected websites and products such as Exact Online. Made in Holland by a partner of Exact, awarded accountancy app partner of the year 2017.
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