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.
Headless identity and user-management server with an API-first design.
Single sign-on and two-factor portal that sits in front of web apps via a reverse proxy.
Authentication backend with prebuilt UI, sessions and multi-tenancy.
Directory / Auth & identity / Keycloak
Identity and access management server with SSO, OIDC, SAML and user federation (CNCF).
Will it still be around?
Health 96/100 · Healthy
Activity, bus factor and issue responsiveness. Breakdown

At 25 users, Okta costs about $150 a month and self-hosting Keycloak about $264, so Okta is cheaper at this size. Self-hosting pays off from 49 users.
List price: Okta Starter Suite, billed annually. SSO alone is $2 per user; most companies add adaptive MFA and lifecycle management ($14 to $17 per user). Minimum contract $1,500 a year. Source, checked 2026-10-07.
Extra cost over 3 years
$5,304
Pays for itself
Not at this size
Extra cost in year one
$2,568
Each month
$150 → $264
| Month | Okta | Self-hosted | Difference |
|---|---|---|---|
| Today | $0 | $1,200 | −$1,200 |
| Month 3 | $450 | $1,992 | −$1,542 |
| Month 6 | $900 | $2,784 | −$1,884 |
| Month 9 | $1,350 | $3,576 | −$2,226 |
| Month 12 | $1,800 | $4,368 | −$2,568 |
| Month 18 | $2,700 | $5,952 | −$3,252 |
| Month 24 | $3,600 | $7,536 | −$3,936 |
| Month 30 | $4,500 | $9,120 | −$4,620 |
| Month 36 | $5,400 | $10,704 | −$5,304 |
Self-hosting Keycloak usually means an app server, a database and a cache or worker. Hours are for one engineer; the server cost is a typical cloud VPS with backups and grows with the number of people using it.
Not included: paid editions or features of Keycloak (see What's free?), large data migrations, and compliance work. All amounts in US dollars at list price; your negotiated price may differ.
Score v2. How the health score works.
Apache License 2.0 · Open source (permissive)
OSI-approved license with few conditions beyond keeping the copyright notice.
Detected by GitHub as Apache-2.0.
Enterprise features many open-core projects keep for paid plans.
| Feature | Self-hosted, free? |
|---|---|
| SSO (SAML) | Free |
| SSO (OIDC) | Free |
| SCIM provisioning | Unknown |
| Audit logs | Unknown |
| Role-based access control | Free |
| Multi-tenancy | Unknown |
| Stars | 37k | Forks | 9.0k |
|---|---|---|---|
| Last commit | today | Commits, 12 months | 3.2k |
| Releases, 12 months | 26 | Last release | 7 days ago |
| Contributors | 318 | Active authors | 39 in last 100 commits |
| Open issues | 2.7k | Closed issues | 18k |
Snapshot from 2026-10-08.