IdentityServer
An open-source, standards-compliant, and flexible OpenID Connect and OAuth 2.x framework for ASP.NET Core.
As IdentityServer is an open source project, you can find more
open source alternatives and stats
on LibHunt.
An open-source, standards-compliant, and flexible OpenID Connect and OAuth 2.x framework for ASP.NET Core.
We don't know any good IdentityServer open-source alternatives yet.
You are more than welcome to suggest any alternatives that you know of, or ask the community for suggestions.
Alternatively, we recommend checking out LibHunt for open-source libraries and alternatives to IdentityServer.