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

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

☁️ Python package for interacting with Steam

Two-Factor Authentication Client for iOS

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

Antelope Desktop Wallet and Authenticator

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

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

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

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.基于 Flutter 的双因素验证器，支持Android、Windows和Linux平台，支持Onedrive、Dropbox、WebDAV、S3Cloud等多种云备份方式。