[masonhensley]

Like this? (Open source) https://www.keycloak.org/

[du_bing]

seems great, but how to use it in other programming language? How to add my backend logic?

[pharaohgeek]

Keycloak is an identity/authentication provider. Your app would leverage it using OpenID Connect (OAuth 2). Keycloak would handle the heavy lifting related to identity management, registration, password changes, authentication, etc. Your app would handle everything else.