Keycloak
96 · HealthyIdentity and access management server with SSO, OIDC, SAML and user federation (CNCF).
Identity and access management server with SSO, OIDC, SAML and user federation (CNCF).
Identity provider with flows, SSO across OIDC, SAML, LDAP and a proxy outpost.
Auth and identity service for SaaS and AI apps, built on OIDC with organizations and RBAC.
Multi-tenant identity platform with event-sourced audit trail and B2B organizations.
Authentication server with passkeys, passwords, social login and drop-in web components.
TypeScript authentication framework with email and social login, passkeys, two-factor, organizations and SSO plugins.
Headless identity and user-management server with an API-first design.
Lightweight OpenID Connect provider that signs users in to your apps with passkeys only.
Authentication backend with prebuilt UI, sessions and multi-tenancy.
Single sign-on and two-factor portal that sits in front of web apps via a reverse proxy.
Authentication server with passkeys, passwords, social login and drop-in web components.
Will it still be around?
Healthy
Score 84/100
Can a business use it freely?
Free, share hosted changes
AGPL-3.0 · open source (copyleft)

has,doesn't3 features1 feature
5/8 Auth0 features free in Hanko
Headline Auth0 features on the B2C Essentials plan, and whether Hanko has each in its free, self-hosted edition.
| Feature | Auth0B2C Essentials plan | Hanko5 of 8 free |
|---|---|---|
| Auth0 has, Hanko doesn't3 | ||
| Organizations (B2B tenants) | Included10 organizations | No |
| Custom code in login flows | IncludedActions | PartlyWebhooks |
| OAuth 2.0 and OIDC provider | Included | No |
| Hanko has, Auth0 doesn't1 | ||
| Audit logs | Limited5 days of logs | Yes |
| Both have4 | ||
| Hosted login pages | IncludedUniversal Login | YesDrop-in web components |
| Social login | Included | Yes |
| Multi-factor authentication | Included | YesTOTP and security keys |
| Passkeys and passwordless | Included | YesPasskey-first |
Sources
At 500 monthly active users, Auth0 (about $35 a month) is the cheaper choice. Switching to Hanko on OpenTools saves money from 1,000 monthly active users.
Monthly cost
You save each month
−$4/mo
-11% less than today
Saving from month one
You save
List price checked 8 Oct 2026 · Source · Disclaimer
Healthy · activity, bus factor and issue responsiveness, from GitHub
Score v2 · How it works
100/100
53/100
92/100
Free, share hosted changes
AGPL-3.0 · Open source (copyleft)
What you need to do
Free for any use, commercial included. If you change the code and people outside your company use it over the network, you must publish your changes under the same license.
For Hanko
The backend is AGPL-3.0; the elements and frontend-sdk directories carry their own licenses.
AGPL-3.0 (server) + separately licensed web components and SDK · Open source (copyleft). OSI-approved license that requires sharing changes under the same license when you distribute (AGPL: also when you offer it over a network).
License text checked 2026-10-09 · Read it
Snapshot from 2026-10-09
Points for pull requests merged into Hanko and reviews of them since 4 June 2026 (older history is still loading). Building something another user asked for earns more.