Keycloak
Open-source identity and access management.

About Keycloak
In Keycloak’s own words: “Keycloak - the open source identity and access management solution. Add single-sign-on and authentication to applications and secure services with minimum effort.”
Keycloak is open source, is free to use and can be self-hosted.
People switching from Auth0 and Okta often consider Keycloak.
Keycloak is an alternative to
Similar to Keycloak
- Amazon CognitoUser sign-up and sign-in on AWS.

- Auth0Okta’s developer-focused identity platform.

- ClerkDrop-in authentication and user management for React apps.

- Firebase AuthenticationGoogle’s hosted auth with social and phone sign-in.

- JumpCloudDirectory, SSO and device management in one platform.

- Microsoft Entra IDMicrosoft’s cloud identity (formerly Azure AD).

- OneLoginSingle sign-on and identity management.

- Ping IdentityEnterprise identity and access management.

Listed for information; LaunchStall isn’t affiliated with Keycloak. The quoted description comes from keycloak.org. Features and plans change — check the official site for current details.
