Best Open Source Alternatives to AWS Cognito

Compare the best free and open-source alternatives to AWS Cognito — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 8 alternatives

AWS Cognito

Proprietary SaaS

AWS Cognito alternatives compared

Open-source alternatives to AWS Cognito, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Better Auth	30,575	MIT	Web	No	Nov 2026	Visit
Logto	14,841	MPL-2.0	DockerLinux	Yes	Nov 2026	Visit
Hanko	9,061	AGPL-3.0	DockerLinux	Yes	Nov 2026	Visit
Stack Auth	6,884	—	DockerLinux	Yes	Nov 2026	Visit
Permify	5,968	AGPL-3.0	Web	No	Nov 2026	Visit
Cerbos	4,644	Apache-2.0	Web	No	Nov 2026	Visit
Authgear	2,140	Apache-2.0	DockerLinux	Yes	Nov 2026	Visit
Tesseral	1,140	MIT	Web	No	Feb 2026	Visit

Top open-source AWS Cognito alternatives

Better Auth30,575MIT

Better Auth replaces Clerk with a self-hosted TypeScript authentication framework featuring native database adapters, plugins, and full schema ownership.

Web

vs AWS Cognito: a free, open-source option you fully control, licensed MIT.

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Logto14,841MPL-2.0

Logto is an open-source Auth0 alternative providing self-hosted OIDC, multi-tenant organizations, and enterprise SSO backed by PostgreSQL.

DockerLinux

vs AWS Cognito: a free, open-source option you fully control, licensed MPL-2.0.

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Hanko9,061AGPL-3.0

Hanko is an open-source alternative to Clerk and Auth0, delivering self-hosted passkey authentication and drop-in UI components with full data sovereignty.

DockerLinux

vs AWS Cognito: a free, open-source option you fully control, licensed AGPL-3.0.

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