Tag
Sso tools
4 reviewed tools: 2 free or open source, 2 paid or paid-led.
Order: free and open source first, then hosted products with a real free tier, then paid-led; catalog order inside each group, with quiet or archived repos last. Not a score, and no tool pays for its place.
4 tools
- AutheliaApache-2.0 reverse-proxy SSO, not a full IdP like authentik
Free / OSS · Apache-2.0 · 29.4k GitHub stars
VerdictApache-2.0 proxy SSO. Free as in you operate the reverse proxy.
CatchYou run it behind Traefik/Caddy/nginx. Thin proxy SSO, not a full IdP like authentik (flows, LDAP/RADIUS/SAML, enterprise/). No hosted Authelia Cloud. Ops, the user store, and the proxy stay yours.
- TinyauthAGPL-3.0 one-binary proxy auth + Certified OIDC
Free / OSS · AGPL-3.0 · 8.4k GitHub stars
VerdictAGPL one-binary proxy auth + Certified OIDC. Self-host forever.
CatchVs Authelia/Pocket ID: tiny proxy-fronted auth + Certified OIDC in one binary — not Authelia reverse-proxy SSO alone, not passkeys-only Pocket ID. Free path is self-host.
- WorkOSProprietary AuthKit: first 1M MAUs Free, not OSS
Paid-led · Freemium
VerdictProprietary AuthKit. First 1M MAUs Free; not open source.
CatchProprietary — not OSS. Vs Clerk/Logto/Kinde/Hanko/Better Auth. Free MAU band is the pitch; paid enterprise features exist — check current pricing. Distinct from Clerk, Logto, Kinde, Hanko, and Better Auth.
- StytchAuth SaaS with no feature gates; free to 10k MAU + 5 SSO/SCIM
Paid-led · Freemium
VerdictHosted auth, features unlocked. Free to 10k MAU/5 SSO; usage meters after.
CatchClosed SaaS — not Better Auth/Ory self-host. SSO/SCIM beyond 5 is $125/connection/mo; brand removal $99/mo; fingerprints $0.005 after 10k. MAU overage metered (no hard cliff). HIPAA/SLA need Enterprise.
FAQ
- What is the top free pick among Sso tools?
- Authelia leads the Stack Gems list for Sso tools. Verdict: Apache-2.0 proxy SSO. Free as in you operate the reverse proxy.
- How many Sso tools does Stack Gems review?
- 4: 2 free or open source, 2 paid or paid-led. Each review has a verdict and an honest Catch; no tool pays for its spot.
- Which Sso tools can I self-host for free?
- Authelia and Tinyauth.
- Which Sso tools have the most GitHub stars?
- Authelia (29.4k), Tinyauth (8.4k), per GitHub on 2026-10-21. Stars measure attention, not fit; read the Catch.
- What is the catch with Authelia?
- You run it behind Traefik/Caddy/nginx.