
SuperTokens
Open source user authentication solution with prebuilt UI, custom password policies, session management, and hosted on your domain. Setup in 5 minutes.

SuperTokens offers a comprehensive open source authentication solution that lets you build fast while maintaining full control over your user authentication system. Unlike traditional authentication services, SuperTokens hosts everything on your domain, eliminating redirects and providing a seamless user experience.
Key benefits include:
- Quick setup - Get started in just 5 minutes with prebuilt UI components
- Full customization - Use frontend SDKs and helper functions to build custom login pages
- Domain hosting - Authentication flows hosted on yourdomain.com, no external redirects
- Advanced features - Custom password policies, session limits, and multi-session management
- Cost-effective - Open source with reasonable pricing for hosted services
- Enterprise ready - Trusted by both startups and large enterprises
The platform provides both frontend and backend SDKs with simple configuration options. You can choose between prebuilt UI components for rapid deployment or build completely custom authentication interfaces using their comprehensive SDK. Features like session limiting, password policy enforcement, and multi-device session management come built-in, making it suitable for applications requiring robust security controls.