What is the main difference between Better Auth and Keycloak?

Better Auth and Keycloak are both authentication & sso providers but differ in their approach, features, and target audience. Compare their GitHub stats, technology stack, and community adoption to make the best choice.

Which is better: Better Auth or Keycloak?

The choice between Better Auth and Keycloak depends on your specific needs, technical requirements, and team preferences. Both are quality open source solutions with active communities.

Can I migrate from Better Auth to Keycloak?

Migration between Better Auth and Keycloak is possible but requires careful planning. Consider data export/import capabilities, feature parity, and potential workflow changes.

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Better Auth vs Keycloak

Learn how Better Auth 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.

Better Auth

A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration.

Visit Better Auth Read more

29,776stars+359(+1.2%)

Last 30 days

Last commit
6 hours ago
Repository age
2 years
Version
v1.7.2
License
MIT
Repository
better-auth/better-auth

Sponsor Better Auth ongithub.com

Keycloak

Comprehensive open source identity management solution offering single sign-on, social login, and fine-grained authorization for applications and services.

Visit Keycloak Read more

36,518stars+579(+1.6%)

Last 30 days

Last commit
5 hours ago
Repository age
13 years
Version
26.7.3
License
Apache-2.0
Self-hosted
Yes
Repository
keycloak/keycloak

Detailed Comparison

Keycloak appears to have several advantages over Better Auth, particularly in growth, maturity and features. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.

Comparable

Community & Popularity

Both tools have similar popularity levels, with Better Auth having 29,776 stars and Keycloak having 36,518 stars on GitHub. In terms of developer contributions, Keycloak has 8,873 forks, indicating strong developer engagement.

Keycloak wins

Growth Momentum

Keycloak is growing faster, adding 579 stars in the last 30 days (+1.6%) against adding 359 stars for Better Auth (+1.2%). Keycloak is both larger and pulling further ahead.

Comparable

Development Activity

Both projects show recent activity, with Better Auth last updated 6 hours ago and Keycloak 5 hours ago.

Comparable

Technology Stack

Both tools share common technology foundations, being built with JavaScript, CSS, Typescript, JSX. However, they differ in their additional technology choices: Better Auth uses Next.js, Vue, SvelteKit, Nuxt.js, Tanstack Start, Remix while Keycloak leverages Bash, Python, C, Java.

Keycloak wins

Project Maturity

Keycloak has been in development longer, starting 13 years ago, compared to Better Auth which began 2 years ago. This 11.0-year head start suggests Keycloak may have more mature features and established processes.

Better Auth wins

Licensing

Better Auth uses the MIT license, which is more permissive than Keycloak's Apache-2.0 license, potentially offering greater flexibility for commercial use and integration.

Comparable

Use Cases & Features

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

Keycloak wins

Hosting & Deployment

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