Etopa is described as 'Two-factor-authentication app, which runs as a web server and can be accessed using a web browser or using an Android app. You can use the Etopa.de instance or host your own' and is an app. There are more than 50 alternatives to Etopa for a variety of platforms, including iPhone, Android, iPad, Android Tablet and Mac apps. The best Etopa alternative is Bitwarden, which is both free and Open Source. Other great apps like Etopa are Proton Authenticator, Aegis Authenticator, Ente Auth and 2FA Authenticator (2FAS).
Sign in is easy, convenient, and secure when you use Microsoft Authenticator. Use your phone, not your password, to log into your Microsoft account. You simply have to enter your username, then approve the notification sent to your phone.
United States
OnlyKey is an open source alternative to YubiKey. OnlyKey natively supports: a hardware password manager, multiple two-factor methods (FIDO2, TOTP, and Yubico® OTP), passwordless SSH login, and OpenPGP.
United States
OVault is a super simple OTP app that lets you view and manage OTPs for all your accounts. Set up OTPs by scanning QR codes with your devices Camera App, or by manually providing the OTP secret to the app.
United Kingdom
Tofu generates one-time passwords to help you protect your online accounts. These passwords are used together with your normal password when you sign into services like Google, Facebook, Dropbox, Amazon, and GitHub.
Sweden
EU
Mauth (pronounced Moth) is a Two-Factor Authentication app with support for TOTP and HOTP (coming soon) and compatibility with Google Authenticator.
Georgia
Open-source authenticator app for iOS and macOS generates time-based one-time passwords, supports secure iCloud sync and encrypted backup, FaceID and TouchID unlocking, QR code scanning, custom icons, search, handoff for copying codes, and encrypted export.
Morocco
Keysmith is a token generator for your two-factor authentication (2FA) logins. It supports time and hash-based one-time passwords (TOTP/HOTP).
GermanyEU
OTP authenticator app for managing your 2FA / OTP codes on iPhone, iPad, Mac and Apple Watch.
Australia
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.
Gnome Authenticator is a desktop 2FA code generator for Linux desktops, like Ubuntu.
CzechiaEU
An awesome two-factor authenticator based on Flutter, supports Android, Windows and Linux platforms, and supports multiple cloud backup methods such as Onedrive, Dropbox, WebDAV, S3Cloud, etc.
China
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.
United Kingdom
