Cost / License
- Free
- Proprietary
Platforms
- Online
WorkOS is described as 'Unified APIs and SDKs offer SSO, Directory Sync, passwordless and multi-factor authentication, audit logs, user provisioning, and admin portal setup for seamless identity management' and is a identity management tool in the network & admin category. There are more than 50 alternatives to WorkOS for a variety of platforms, including Web-based, Self-Hosted, SaaS, Linux and Mac apps. The best WorkOS alternative is Keycloak, which is both free and Open Source. Other great apps like WorkOS are ZITADEL , AuthKit, Hanko and Authelia.
CentralAuth is an authentication service that provides user login functionality for web applications. The platform implements security protocols and authentication flows, allowing development teams to integrate user authentication without building these systems internally.

Tesseral is the only open source auth provider focused exclusively on serving B2B SaaS. With just a few simple lines of code, any developer can launch an elegant login page with support for common authentication factors like passwords, magic links, and social login (e.g.
