a UWP Platform OTP Authenticator

Portable Authenticator that provides counter or time-based RFC 6238 authenticators and common implementations, such as the Google Authenticator

A time-based, One-time Password Algorithm (RFC-6238, TOTP - HMAC-based One-time Password Algorithm) based token, implemented by e.g. Microsoft or Google Authenticator mobile application.

DragonKey是用.NET MAUI写的跨平台应用，目前能像Google身份认证器一样保存密钥查看2FA代码

One Time Password Authentication Tools for PowerShell

Dead simple user authentication for C# with support for 2FA via TOTP

A simple and straightforward HOTP and TOTP generation and verification library for .NET.

ID_Authentication_Application created with C# for get authentication of citizen ID through Turkey Government Official WebSite.

MFA authentication via OTP

Encipher is C# Windows Form App where you can store your user login information offline. Encipher incorporates Google Authenticator to login into the program. It encrypts the user inputted data into AES-256 bit encryption which is then saved on the local database created by the program.

Feature-rich and flexible .NET library for implementation of OTP authenticators and validatiors.

The Valley authenticator is an iOS and Android app which can be used for (multi-factor) authentication codes.

Passkeys/FIDO2/WebAuthn .NET Library for Windows Desktop and CLI Applications

A modern and secure Windows app for managing your 2FA authentication codes.

SDroid is a framework for designing and running custom bots for Steam network capable of trading and managing the Steam Account they are connected to.

external OpenID Connect Login to IdentityServer and ASP.NET Core with AAD

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

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