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Stack Auth

Open source Clerk alternative

Reviewed byRoman K· 2026-04-27

About

Drop-in auth with user management, org support, and OAuth. Self-hostable, open source.

authopen-sourceself-hosteduser-management

Metrics

6.8k
GitHub Stars
340
Forks
45.0k
npm Downloads/wk
78
Open Issues

More in Authentication

Frequently asked questions

What is Stack Auth?

Drop-in auth with user management, org support, and OAuth. Self-hostable, open source. It falls under the authentication category and uses a open-source pricing model. The project is actively maintained with 6.8k GitHub stars.

Is Stack Auth free?

Yes, Stack Auth offers a free plan that you can use without a credit card. The pricing model is open-source.

How much does Stack Auth cost?

Stack Auth is free to start. It uses a open-source pricing model. A free plan is available for small projects or evaluation. Check https://stack-auth.com for the latest pricing details and plan comparison.

What category is Stack Auth in?

Stack Auth is a authentication tool. Auth providers, SSO, identity management You can compare Stack Auth with 3 alternatives in the same category on Soft.xyz.

Is Stack Auth open source?

Yes, Stack Auth is open source and freely available on GitHub. It has 6.8k stars and 340 forks, with the last commit on 2026-04-27. You can inspect the source code, contribute, or self-host it.

What are alternatives to Stack Auth?

Popular alternatives to Stack Auth include Clerk, Better Auth, Hanko. Each offers different pricing, features, and community support. You can compare them side-by-side on Soft.xyz using real metrics like GitHub stars, npm downloads, and actual pricing data.

How popular is Stack Auth?

Stack Auth has 6.8k stars on GitHub and 45.0k weekly npm downloads. It has a solid and growing developer community. The project was last updated on 2026-04-27.