A free, secure and open source app for Android to manage your 2-step verification tokens.

Authenticator generates 2-Step Verification codes in your browser.

📱 Two-Factor Authentication (2FA) client for Android + Wear OS

🔑 One Time Password (OTP) / 2FA for Node.js and Browser - Supports HOTP, TOTP and Google Authenticator

☁️ Python package for interacting with Steam

Two-Factor Authentication Client for iOS

Open source 2FA app for Android, iOS and the web, with free end-to-end encrypted backups

One Time Password (HOTP/TOTP) library for Node.js, Deno, Bun and browsers.

Enhanced fork of FreeOTP-Android providing a feature-rich 2FA authenticator

EOSIO Desktop Wallet and Authenticator

Go-Guardian is a golang library that provides a simple, clean, and idiomatic way to create powerful modern API and web authentication.

OAuth + JupyterHub Authenticator = OAuthenticator

A native implementation of Google Authenticator for Mac based on Swift

Software-based TOTP/HOTP authenticator for Flipper Zero device.

DEPRECATED Krypton turns your iOS device into a WebAuthn/U2F Authenticator: strong, unphishable 2FA.

Two-Factor Authenticator Supporting TOTP (Windows 10 & Android, iOS, Linux and macOS App)

Python implementation of the mobile Blizzard Authenticator (TOTP)

Simple cross-platform two-factor (2FA) authenticator app for desktop.

LDAP Authenticator Plugin for Jupyter

A TouchID-aware 2-factor authenticator for macOS