Open source Clerk alternatives
Clerk is a powerful identity and user management platform that simplifies authentication, user profiles, and security for web applications. With easy-to-integrate APIs and pre-built UI components, Clerk streamlines user sign-ups, logins, and account management for developers.
We’ve curated 8 top open-source alternatives to Clerk, with hanko emerging as the best option based on our data. Looking for open-source alternatives to Clerk? Check out stack and unkey.
#1hanko
Advanced authentication solution offering passkeys, social logins, and SAML SSO integration. The cloud-native platform provides flexible user management with customizable web components for seamless implementation.
7k•938•Go
#2stack
A comprehensive authentication solution offering sign-in components, user management, and team collaboration features. This developer-friendly platform provides OAuth integration, passkey support, and role-based access control for modern web applications.
4k•283•TypeScript
#3unkey
A robust open-source solution for API security that streamlines authentication and authorization processes. Built with modern security standards, Unkey delivers enterprise-grade protection for your API infrastructure.
4k•522•TypeScript
#4logto
A comprehensive Identity and Access Management platform that streamlines authentication with SSO, OIDC, and Multi-Tenant capabilities. The open-source solution enables secure user management through advanced features like RBAC and MFA.
9k•459•TypeScript•MPL-2.0
#5jackson
Transform enterprise authentication with this powerful solution that bridges SAML login to OAuth 2.0/OpenID Connect and enables automated user management through SCIM 2.0 directory sync.
1k•166•TypeScript•Apache-2.0
#6authentik
A versatile open-source Identity Provider offering comprehensive authentication solutions with support for multiple protocols. The platform serves as a powerful alternative to traditional IdPs, delivering enterprise-grade identity management capabilities.
14k•952•Python
#7supertokens-core
A comprehensive authentication solution offering secure login methods and session management. Built with Java for reliability, this open-source platform enables complete control over user data through on-premises deployment.
13k•540•Java
#8kratos
A cloud-native identity and user management system offering secure authentication flows, including social sign-in, passwordless, and MFA capabilities. The battle-tested solution enables seamless user registration and profile management.
11k•963•Go•Apache-2.0