Open source alternatives to Clerk

B

better-authv1.7.25better-auth/better-auth

The most comprehensive authentication framework

L

logtov1.46.0logto-io/logto

🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.

S

supertokens-corev12.5.0supertokens/supertokens-core

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

N

next-auth4.24.15nextauthjs/next-auth

Authentication for the Web.

H

hankobackend/v3.1.0teamhanko/hanko

Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.