Keycloak
Combine filters →Keycloak is a Java identity server, the sign-in front door for other applications. It needs a JVM heap of a gigabyte or more and a stable hostname with TLS, since every client is configured against its URL and a change breaks them all. Production installs put PostgreSQL behind it. Java hosts and container platforms carry it; shared hosting does not.
1 provider documents support for Keycloak, listed alphabetically. All of them shared hosting. 88 records do not record this field, and cannot appear here either way.