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

New membership system for ASP.NET applications
DotNetOpenAuth

8.5 0.0 L1 IdentityServer VS DotNetOpenAuth

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

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Cierge

6.7 4.9 IdentityServer VS Cierge

🗝️ Passwordless OIDC authentication done right
Stuntman

4.1 0.0 L5 IdentityServer VS Stuntman

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

4.0 3.6 IdentityServer VS ASP.NET SAML

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

3.7 0.5 L5 IdentityServer VS TwoFactorAuth.Net

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

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

1.4 IdentityServer VS IdentityModel

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

1.3 5.1 IdentityServer VS IAmRoot NuGet Package

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

1.0 0.0 L2 IdentityServer VS CodeNode.Identity

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#