
Stack Auth is the open-source Auth0 alternative. We are your login and signup page, and everything that comes with that.
Seamless Integration
Easily adapt authentication processes to your specific needs.
Organizations & Teams Management
Support B2B customers with tools for managing teams and email invitations.
3rd-party OAuth Access
Connect to OAuth APIs like Gmail or OneDrive without complex setups.
No JWT Setup Required
Stack Auth manages JWTs and access tokens automatically for optimal performance.
Stack Auth is an open-source suite of tools designed for user authentication and management, enabling developers to implement secure login and signup processes quickly. With its intuitive interface and robust features, Stack Auth allows for customization and flexibility, making it a perfect alternative to proprietary solutions like Auth0. The platform is supported by a vibrant community, ensuring continuous improvement and feature updates.
Stack Auth offers various functionalities including password management, single sign-on (SSO), two-factor authentication (2FA), and a headless SDK for custom UI development. It also supports webhooks for integrating with services like Slack and database synchronization.
Developers looking to implement user authentication in their applications quickly.
Businesses needing a customizable solution for managing user access and permissions.
Teams wanting to integrate third-party OAuth services without complex configurations.
Users report being able to set up Stack Auth in a matter of hours.
Yes, Stack Auth supports organizations and teams, making it ideal for B2B customers.
Absolutely, Stack Auth allows for both headless UI integration and the use of styled components.