Auth, SSO & secrets

3 SaaS · open-source self-host alternatives in this vertical

Every SaaS in this category, paired with its primary open-source self-host alternative. Each link drills into the full comparison page (license, setup time, monthly cost, migration sketch). Managed-hosting picks for self-hosters: managed Authentik, Keycloak, Zitadel, or Vaultwarden.

1Password Password manager / secrets vault

Primary self-host alt: Vaultwarden · dani-garcia/vaultwarden · AGPL-3.0 · 10min docker-compose
Auth0 Identity / SSO / authentication-as-a-service

Primary self-host alt: Keycloak · keycloak/keycloak · Apache-2.0 · 20-30min docker-compose (Keycloak + Postgres)
Bitwarden Password manager / secrets vault

Primary self-host alt: Vaultwarden · dani-garcia/vaultwarden · AGPL-3.0 · 5min docker run

FAQ

How many open-source self-host alternatives does os-alt list for auth, SSO & secrets?

3 SaaS in the auth, SSO & secrets vertical, each paired with its primary open-source self-host alternative on os-alt.

Are these auth, SSO & secrets alternatives free?

Yes — every listed alternative is open source and free to self-host. Your only cost is the VPS or hardware that runs it.

What managed-hosting options does os-alt suggest for auth, SSO & secrets?

Managed-hosting picks for self-hosters: managed Authentik, Keycloak, Zitadel, or Vaultwarden.