Top 23 C# Authentication Projects

Authentication

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1. git-credential-manager

   1 38 7,726 8.1 C#

   Secure, cross-platform Git credential storage with authentication to GitHub, Azure Repos, and other popular Git hosting services.

   

   Project mention: Supply Chain Attacks on Linux Distributions – Fedora Pagure | news.ycombinator.com | 2025-03-23

2. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. TodoApp

   2 10 3,020 7.5 C#

   Todo application with ASP.NET Core Blazor WASM, Minimal APIs and Authentication

   

4. blazorboilerplate

   3 5 1,905 5.6 C#

   Blazor Boilerplate / Starter Template with MudBlazor

   

5. microsoft-identity-web

   4 7 736 9.4 C#

   Helps creating protected web apps and web APIs with Microsoft identity platform and Azure AD B2C

   

6. keycloak-authorization-services-dotnet

   5 1 580 7.4 C#

   Authentication and Authorization with Keycloak and ASP.NET Core 🔐

   

7. Security.Identity

   6 1 572 0.0 C#

   .NET DevPack Identity is a set of common implementations to help you implementing Identity, Jwt, claims validation and another facilities

   

8. Kerberos.NET

   7 1 537 5.3 C#

   A Kerberos implementation built entirely in managed code.

   

9. SaaSHub

   www.saashub.com featured

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

10. 2fast

    8 16 484 8.7 C#

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

    

11. JwtAuthDemo

    9 1 410 2.7 C#

    ASP.NET Core + Angular JWT auth demo; integration tests; login, logout, refresh token, impersonation, authentication, authorization; run on Docker Compose.

    

12. complete-ecommerce-aspnet-mvc-application

    10 1 280 0.0 C#

    This is the source code of the "ASP.NET MVC | Build a Complete eCommerce App" course on Udemy

    

13. ActiveLogin.Authentication

    11 1 222 7.4 C#

    Support Swedish BankID (svenskt BankID) authentication in .NET. Unofficial package, not created by BankID.

    

14. adfsmfa

    12 2 163 6.0 C#

    MFA for ADFS (2012r2 -> 2025)

    

15. OidcProxy.Net

    13 1 137 8.8 C#

    An extendible framework for .NET to implement the BFF Security Pattern (a.k.a. Token Handler Pattern) in Single Page Applications

    

16. auth0-aspnetcore-authentication

    14 1 101 4.2 C#

    SDK for integrating Auth0 in ASPNET Core

    

    Project mention: Securing Blazor in All Its Flavors | dev.to | 2025-02-27

    If you use Auth0 for authentication, you can leverage the Auth0 ASP.NET Core Authentication SDK to simplify things.

17. authentication-unity

    15 1 72 0.0 C#

    OAuth 2.0 Client for Unity

    

18. Oidc.Server

    16 3 65 6.5 C#

    Flexible OpenID Connect and OAuth 2.0 server-side implementation for modern ASP.NET projects

    

    Project mention: Modern Authentication on .NET in Practice: OpenID Connect, BFF and SPA | dev.to | 2024-08-26

    As mentioned earlier, for the practical integration example, we will use a test OpenID Connect server based on the Abblix OIDC Server library. The base template for an application based on ASP.NET Core MVC with the Abblix OIDC Server library is also available in the Abblix.Templates package we installed earlier. Let's use this template to create a new application named OpenIDProviderApp:

19. nsspi

    17 2 63 0.0 C#

    A C# / .Net interface to the Win32 SSPI authentication API

    

20. PlexSSO

    18 2 52 6.3 C#

    Plex backed Single Sign On

    

21. crypthash-net

    19 1 42 0.0 C#

    CryptHash.NET is a .NET multi-target library to encrypt/decrypt/hash/encode/decode strings and files, with an optional .NET Core multiplatform console utility.

    

22. Authn

    20 2 39 1.8 C#

    Authorization and Authentication in ASPNET CORE

    

23. getSAMLResponse-Interactive

    21 2 36 0.0 C#

    Set of tools to interactively authenticate to a SAML IDP and return SAML Response.

    

24. minimal-api-jwt-auth

    22 1 34 6.1 C#

    🔐 🛂 ASP.NET (versions 8 and 9) minimal API with JWT authentication and authorization

    

25. csharp-dotnet-digest-authentication

    23 1 13 0.0 C#

    A basic example of digest authentication using C# and .NET

    

26. SaaSHub

    www.saashub.com featured

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

C# Authentication related posts

• Modern Authentication on .NET in Practice: OpenID Connect, BFF and SPA

  2 projects | dev.to | 26 Aug 2024

• Implementing fine-grained access control with ASP.NET Core custom endpoint metadata

  1 project | dev.to | 26 Feb 2024

• Trying to deploy Windows Store app to ~350 machines

  1 project | /r/sysadmin | 1 Jun 2023

• Need step-by-step instructions on how to use Yubikey for 2FA with GirHub

  1 project | /r/github | 4 May 2023

• Need help to leaving Authy (if possible)

  1 project | /r/PrivacyGuides | 25 Apr 2023

• Everything .NET developers need to know about consuming SAML2

  1 project | /r/dotnet | 27 Mar 2023

• Is it safe to use Bitwarden 2FA for another Bitwarden account?

  1 project | /r/Bitwarden | 24 Feb 2023
• A note from our sponsor - SaaSHub
  www.saashub.com | 15 Jun 2025

  SaaSHub helps you find the best software and product alternatives Learn more →

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