Authgear vs Keycloak

Keycloak significantly outpaces Authgear in community adoption with 36,283 stars compared to 1,990 stars on GitHub. This 18.2x difference suggests Keycloak has a much larger and more active community. In terms of developer contributions, Keycloak has 8,821 forks, indicating strong developer engagement.

Authgear is growing faster, adding 85 stars in the last 30 days (+4.5%) against adding 527 stars for Keycloak (+1.5%). Authgear is the smaller project of the two, so it is closing the gap rather than extending a lead.

Both projects show recent activity, with Authgear last updated 2 days ago and Keycloak 9 hours ago.

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

Keycloak has been in development longer, starting 13 years ago, compared to Authgear which began 6 years ago. This 7.1-year head start suggests Keycloak may have more mature features and established processes.

Both projects use the Apache-2.0 license, providing identical terms for usage and distribution.

Both tools serve similar use cases in Authentication & SSO. However, they also have distinct specializations: Authgear also focuses on Identity & Access Management (IAM) while Keycloak extends into Authorization & Permissions.

Authgear provides self-hosting options for complete data control and customization, while Keycloak may be primarily cloud-based or require different deployment approaches.