Authorizer (authentication) Alternatives

OmniAuth is a flexible authentication system utilizing Rack middleware.

HybridAuth A PHP Library for authentication through Facebook, Twitter, Google, Yahoo, MySpace, LinkedIn, AOL, Vimeo, FourSquare, OpenID and other Identity providers

Auth.js is a runtime agnostic library based on standard Web APIs that integrates deeply with multiple modern JavaScript frameworks to provide an authentication experience that’s simple to get started with, easy to extend, and always private and secure!

Userbase is the easiest way to add user accounts and data persistence to your static site. All Userbase features are accessible through a very simple JavaScript SDK, directly from the browser. No backend necessary.

Magick.Link is a revolutionary web app that allows you to securely share web pages and embed custom text or HTML directly within their content

The authentication platform that helps you secure your apps with branded login pages and your choice of identity methods.

With the extensions of Keycloak+, enterprise requirements are fullfilled like: Delegated Administration, management of permissions in organizational structures, SCIM 2 provisioning, User Life Cycle / Housekeeping, GDPR/data protection/Audit and many more IAM features, for...

MojoAuth is the safest passwordless authentication solution that enables your users to login seamlessly with an email OTP or magic link or WebAuthn, which in turn provides stronger security to your business.

Meveto is an authentication company that completely removes the use of passwords - eliminating one of the biggest threats to any organization's security and hacker's favorite way to breach.

idaas.nl provides an advanced identity platform fully configurable using the web interface or via APIs. It provides capabilities related to user registration, authentication and delegated authorization.