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

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

Two-Factor Authentication Client for iOS

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

EOSIO Desktop Wallet and Authenticator

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

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

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

OAuth + JupyterHub Authenticator = OAuthenticator

A native implementation of Google Authenticator for Mac based on Swift

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

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

Python implementation of the mobile Blizzard Authenticator (TOTP)

POT is an Erlang library for generating Google Authenticator compatible one time passwords

LDAP Authenticator Plugin for Jupyter

A free and open-source 2FA app for smartwatches.