Keycloak significantly outpaces Permify in community adoption with 36,125 stars compared to 5,935 stars on GitHub. This 6.1x difference suggests Keycloak has a much larger and more active community. In terms of developer contributions, Keycloak has 8,766 forks, indicating strong developer engagement.

Keycloak is growing faster, adding 509 stars in the last 30 days (+1.4%) against adding 19 stars for Permify (+0.3%). Keycloak is both larger and pulling further ahead.

Both projects show recent activity, with Keycloak last updated 1 hour ago and Permify 7 hours ago.

Both tools share common technology foundations, being built with JavaScript, Bash, Typescript, JSX, Python, Java. However, they differ in their additional technology choices: Keycloak uses CSS, C while Permify leverages Golang.

Keycloak has been in development longer, starting 13 years ago, compared to Permify which began 4 years ago. This 9.2-year head start suggests Keycloak may have more mature features and established processes.

The projects use different licenses: Keycloak is licensed under Apache-2.0 while Permify uses AGPL-3.0. Consider the licensing requirements when choosing for your project.

Both tools serve similar use cases in Authorization & Permissions. However, they also have distinct specializations: Keycloak also focuses on Authentication & SSO.