IdentityServer alternatives and similar packages

Based on the "Authentication and Authorization" category.

• ASP.NET Identity

  8.9 0.0 L2 IdentityServer VS ASP.NET Identity

  DISCONTINUED. New membership system for ASP.NET applications

• DotNetOpenAuth

  8.5 0.0 L1 IdentityServer VS DotNetOpenAuth

  DISCONTINUED. A C# implementation of the OpenID, OAuth and InfoCard protocols

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• Cierge

  6.7 4.9 IdentityServer VS Cierge

  DISCONTINUED. 🗝️ Passwordless OIDC authentication done right

• Topaz

  6.1 9.3 IdentityServer VS Topaz

  Cloud-native authorization for modern applications and APIs
  

• ASP.NET SAML

  4.8 3.7 IdentityServer VS ASP.NET SAML

  Very simple SAML 2.0 consumer module for ASP.NET/C#
  

• TwoFactorAuth.Net

  4.3 0.0 L5 IdentityServer VS TwoFactorAuth.Net

  .Net library for Two Factor Authentication (TFA / 2FA)

• Stuntman

  4.1 1.0 L5 IdentityServer VS Stuntman

  DISCONTINUED. Library for impersonating users during development leveraging ASP.NET Identity.
  

• ThinkSharp.Licensing

  2.9 6.5 IdentityServer VS ThinkSharp.Licensing

  Simple library with fluent API for creating and verifying signed licenses
  

• Logibit Hawk

  1.9 0.0 IdentityServer VS Logibit Hawk

  A F# Hawk implementation with a strongly typed API that guides your usage and minimises security programming errors.
  

• PwdLess

  1.7 0.0 L5 IdentityServer VS PwdLess

  DISCONTINUED. Platform-agnostic passwordless authentication that's a joy to use.

• IAmRoot NuGet Package

  1.5 6.3 IdentityServer VS IAmRoot NuGet Package

  📦🏴‍☠️ NuGet package that shows we can run arbitrary code from any NuGet package
  

• IdentityModel

  1.4 IdentityServer VS IdentityModel

  Helper library for identity & access control in .NET 4.5 and MVC4/Web API.

• CodeNode.Identity

  1.0 0.0 L2 IdentityServer VS CodeNode.Identity

  DISCONTINUED. An easy implementation for Identity framework for .net applications

• OAuth

  0.7 - IdentityServer VS OAuth

  A very lightweight library for generating OAuth 1.0a signatures written in C#

* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest.

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Popular Comparisons

• IdentityServer
  vs
  DotNetOpenAuth
• IdentityServer
  vs
  ASP.NET Identity
• IdentityServer
  vs
  IdentityModel
• IdentityServer
  vs
  Cierge
• IdentityServer
  vs
  OAuth