Jenkins vs Keycloak
The ultimate side-by-side head-to-head analysis for 2026.
Short answer
- Price: both start at Free.
- How to start: both are free.
These lines are generated from the pricing we track, not from a paid placement. We do not publish a quality score, because we do not have one we can stand behind. They cannot tell you which tool fits your workflow — the sections below are there for that. How we score tools.
Jenkins
Keycloak
Category
Developer Tools
Developer Tools
Base Price
Free
Free
Public API
Yes
Yes
Mobile app
No
No
Open source / self-hostable
Yes
Yes
SSO (SAML)
No
Yes
Choose Jenkins if:
Teams with infrastructure skills who need full control or cannot send code to a hosted service.
Choose Keycloak if:
Organisations that need enterprise identity without a per-user bill.
Jenkins: pros & cons
- Free and open source with no usage limits
- Enormous plugin ecosystem
- Runs entirely on your own infrastructure
- You maintain the server, the agents and the plugins
- Interface and defaults feel dated
- Plugin quality varies and updates can break builds
Keycloak: pros & cons
- Full identity server at no licence cost
- Standards support including SAML and OIDC
- Complete control over user data
- Operating it is a real responsibility
- Administration console is dense
- Upgrades need care
Our verdict on Jenkins
Still the right answer when control matters more than convenience. For most small teams a hosted CI is less work.
Our verdict on Keycloak
The serious open-source answer to Auth0. Budget for the operations, because the licence saving is not free.