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Open-Source Authentication Tools.

Compare 7 authentication tools by hosting model, license, stack, use case, and production readiness.

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Featured Authentication Tools

Open SourceEnterprise Ready

Keycloak

Identity and access management with SSO, OIDC, and SAML.

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Partially FreeMature

authentik

Self-hosted identity provider with SSO and MFA paths.

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Open SourceMature

Logto

Customer auth, RBAC, SSO, and multi-tenant identity.

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Partially FreeMature

SuperTokens

App authentication with sessions, login, and passwordless flows.

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Open SourceMature

Authelia

SSO and MFA access gateway for web apps and self-hosters.

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Partially FreeEnterprise Ready

AuthKit

WorkOS-powered login box and example app for hosted authentication, custom auth UIs, SSO, OAuth, and user management flows.

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Open SourceMature

Better Auth

Framework-agnostic TypeScript authentication and authorization framework with plugins for advanced auth features.

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Explore the complete searchable directory for more projects in this category.