Static comparison

Zitadel vs Keycloak

Keycloak has the stronger current ToolVitals signal, but check fit, license class, hosted pricing evidence, and confidence before switching.

Zitadel

ZITADEL - Identity infrastructure, simplified for you.

Alternatives

Keycloak

Open Source Identity and Access Management For Modern Applications and Services

Alternatives

Evidence comparison

Use case	Identity & Access Management	Identity & Access Management
Openness	OSI-approved OSS	OSI-approved OSS
License	AGPL-3.0	Apache-2.0
Health	98	91
Shipping	72	100
ToolVitals score	90	96
Data confidence	100	100
Source coverage	100	86
Hosted pricing	No hosted pricing tracked: No current pricing evidence	No hosted pricing tracked: No current pricing evidence
Status reason	Maintenance and shipping signals are strong.	Maintenance and shipping signals are strong.

Decision notes

How to read this matchup

Fit Same use case

Both tools are tracked under Identity & Access Management, so this is a closer alternative comparison.

Score gap 6 points

The headline score gap is visible enough to investigate the stronger signal first.

Zitadel Best for OSI-approved open source and strong maintenance posture

Zitadel is tracked as OSI-approved open source with high confidence in ToolVitals data.

Keycloak Best for OSI-approved open source and fast recent shipping

Keycloak is tracked as OSI-approved open source with high confidence in ToolVitals data.

Comparison FAQ

Which has the stronger ToolVitals signal, Zitadel or Keycloak?

Keycloak has the stronger current ToolVitals signal, but check fit, license class, hosted pricing evidence, and confidence before switching.

Are Zitadel and Keycloak direct alternatives?

Yes. ToolVitals classifies both tools in the Identity & Access Management use case, so the score, health, shipping, pricing, and license rows can be read as a close comparison.

Do sponsors affect this comparison?

No. Sponsors and affiliate links do not affect ToolVitals scores, rankings, risk labels, or evidence display.

Editorial independence

Affiliate CTAs, when present, use sponsored links and never affect scores, rankings, risk labels, evidence freshness, or comparison verdicts.