GNOME Authenticator is described as 'Gnome Authenticator is a desktop 2FA code generator for Linux desktops, like Ubuntu' and is a Authenticator in the security & privacy category. There are more than 25 alternatives to GNOME Authenticator for a variety of platforms, including Android, iPhone, Linux, Mac and Windows apps. The best GNOME Authenticator alternative is Ente Auth, which is both free and Open Source. Other great apps like GNOME Authenticator are Bitwarden Authenticator, Authy, Google Authenticator and Authenticator Extension.
Ente's Authenticator app helps you generate and store 2 step verification (2FA) tokens on your mobile devices.
Bitwarden Authenticator generates verification codes for two-factor authentication, ensuring your identity is verified when you log into accounts.
Manage two-factor authentication seamlessly across various platforms with secure cloud backups and offline access. From Gmail to LastPass, enhance security effortlessly. Sync multiple devices securely and protect sensitive data with robust encryption.
Google Authenticator generates 2-Step Verification codes on your phone.
Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.
The multi-protocol security key offers the highest assurance, protecting devices with passwordless workflows and strong 2FA against phishing. It plugs into computers, tablets, and mobile devices, integrates PIN or biometric for identity verification, and reduces helpdesk costs.
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.
Mauth (pronounced Moth) is a Two-Factor Authentication app with support for TOTP and HOTP (coming soon) and compatibility with Google Authenticator.
Keysmith is a token generator for your two-factor authentication (2FA) logins. It supports time and hash-based one-time passwords (TOTP/HOTP).
GTK+ application for securely managing TOTP & HOTP tokens. Content is encrypted on disk using AES256-GCM. Master password derived using PBKDF2 with 100k iterations & SHA512 as hash algorithm. Can import encrypted backups from andOTP & Authenticator+.
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.
Etopa is a 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.
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Easy to use, pretty low on resources, can import-export in multiple formats, encrypted out of the box with sensible security defaults and hasn't failed me yet on any QR code scan.