Learn how Authgear and Keycloak differ in their key features, development activity, technology stack and community adoption, so you can decide which of these authentication & sso providers is best for you.
Last 30 days
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Self-hosted
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Last 30 days
Last commit
Repository age
Version
License
Self-hosted
Repository

Both Authgear and Keycloak have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.
Keycloak significantly outpaces Authgear in community adoption with 36,666 stars compared to 2,031 stars on GitHub. This 18.1x difference suggests Keycloak has a much larger and more active community. In terms of developer contributions, Keycloak has 8,907 forks, indicating strong developer engagement.
Authgear is growing faster, adding 74 stars in the last 30 days (+3.8%) against adding 580 stars for Keycloak (+1.6%). 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 21 hours ago and Keycloak 12 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.
Both Authgear and Keycloak offer self-hosting capabilities, giving you full control over your data and infrastructure.
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