Software emulated Yubikey in HOTP mode for Swift

Two-Factor Authentication CLI for macOS and Linux.

📱 JavaScript 2FA QR code generator.

Sapmle app for sending sms texts in background. Desmonstrates the use of JobServices, Asynchronous tasks, SMS manager, Volley API, firebase and more

Shows how to use an authenticator with your mvc app.

Aplikacja generuje kody uwierzytelniania dwuskładnikowego co 30 sekund dla kluczy z pliku json (2FA). (Desktop Two-factor authentication application).

Headless Spring Boot demo application

Personal project to learn how use 2FA in Rails app

Testing OTP - using pyopt with Python Tkinter GUI

Google Authenticator example.

A C# library for Two Factor Authentication [2FA]

How to add SIM Swap detection to an existing Twilio Verify SMS/Voice 2FA app using tru.ID SIMCheck.

Go One-Time Password Library

A Next.js template implementing Auth.js v5 with multiple providers (GitHub, Google) and PostgreSQL using Prisma ORM. Includes authentication, protected routes, and session management.

Kanboard 2FA plugin

Another 2FAuthenticator based on TOTP for Zepp Amazfit GTS 4

Gnome extension for managing kerberos authentication

List of sites with two factor auth support which includes SMS, email, phone calls, hardware, and software.

App code – Mobile application for iOS and Android.