Top 4 Open-Source Alternatives to IdentityServer4

IdentityServer4

IdentityServer4 is an elegant open-source server that comes with great authentication which allows you to implement OpenID connection and OAuth standards designed for the ASP.NET core.

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Product categories

Identity And Access Management Identity Provider Network & Admin SSO Security & Privacy Single Sign-On Tool Web Security

Summary

The top open-source alternatives to IdentityServer4 are Keycloak, OpenID, and Auth0. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Keycloak Landing Page
1

Keycloak

Open Source Identity and Access Management for modern Applications and Services.
Pricing:
- Open Source
#SSO #Identity Provider #Identity And Access Management 4 social mentions
OpenID Landing Page
2

OpenID

OpenID is a safe, faster and easier way to log in to web sites.
Pricing:
- Open Source
#Identity And Access Management #Tool #Security & Privacy 3 social mentions
Auth0 Landing Page
3

Auth0

Auth0 is a program for people to get authentication and authorization services for their own business use.
Pricing:
- Open Source
#Single Sign-On #SSO #Identity Provider 195 social mentions
IdentityServer Landing Page
4

IdentityServer

An open-source, standards-compliant, and flexible OpenID Connect and OAuth 2.x framework for ASP.NET Core
Pricing:
- Open Source
#SSO #Identity Provider #Identity And Access Management 7 social mentions