HybridAuth A PHP Library for authentication through Facebook, Twitter, Google, Yahoo, MySpace, LinkedIn, AOL, Vimeo, FourSquare, OpenID and other Identity providers
Cost / License
- Free
- Open Source
Platforms
- Online
- PHP
Apps similar to Clerk Authentication include VoidAuth, which is free and open source. Other options are Keycloak, Authelia, ZITADEL and Better Auth. Identity Management Tools like Clerk Authentication are a crowded field, with more than 50 alternatives for the web, self-hosting, Mac, Windows and Linux.
HybridAuth A PHP Library for authentication through Facebook, Twitter, Google, Yahoo, MySpace, LinkedIn, AOL, Vimeo, FourSquare, OpenID and other Identity providers
Self-hosted, open-core Identity & Access Management in Go. OIDC/OAuth 2.0, SAML 2.0, SCIM 2.0, FAPI 2.0 and the EU Digital Identity Wallet stack (eIDAS 2.0). Multi-tenant, runs inside your perimeter.


A no-code CIAM, reimagined for collaboration. It empowers developers, marketing, and operations to work together on the customer identity experience, resulting in faster innovation and user journeys.



All-in-one access management solution providing strong and adaptive authentication, authorization, single sign-on (SSO), entitlements, federation and web services security.
SAWO is an authentication solution which helps websites and apps onboard user without passwords and OTPs thus reducing bounce rate and increasing conversion.




SuperTokens is an open source user authentication solution. Using SuperTokens, developers can add secure, hassle free auth to their mobile application or website in less than a day. It is an alternative to Auth0, Firebase Auth and AWS Cognito.




OneAll is a technology company offering a set of web-delivered tools and a Unified Social Network API to simplify the integration of 20+ social networks such as Facebook, Twitter, Google, Yahoo! and LinkedIn into business and personal websites.

Everything you need to launch faster, in one platform. Powerful infrastructure for auth, user management, feature flags and billing. We’re reinventing the way software companies get started, so you can focus on what really matters, building your core product.




Userfront makes it easy to add authentication, access control, SSO, and multi-tenancy to any web application.



Kno is an API for providing secure passwordless authentication for your web application. Kno offers web-based, one click access


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.


