EU-hosted managed identity platform. OAuth 2.0, OpenID Connect, SAML. White-labeling, multi-tenancy, passkeys. Frankfurt datacenter. Free tier included.
Germany
EU
+2
Free Okta Alternatives
The best free alternative to Okta is VoidAuth, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Okta and loads of them are free so hopefully you can find a suitable replacement. Other interesting free alternatives to Okta are Keycloak, authentik, Authelia and ZITADEL .
Alternatives list
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.
Cost / License
- Free
- Proprietary
Since
- Since 2021
+2
Discover dozens of web based apps in our app store. Project management, CRM, Video Conferencing and much more. Sign up once, switch monthly, save tons
Cost / License
- Freemium
- Proprietary
Since
- Since 2020
+2
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.
Cost / License
- Freemium
- Open Source (MIT)
Since
- Since 2025
United States
Access & Subscriptions made easy Bring Access and Subscription Management together in one simple, secure solution. Save time, strengthen security, and make your SaaS operations scalable.
Cost / License
- Free
- Proprietary
Since
- Since 2025
+1
Free Alternative Authenticate, onboard, verify, and charge unlimited users of any platform at no cost.
DID is an OAuth Identity Provider, that authenticates users by verifying access to either an email address or securely stored private key.
Cost / License
- Freemium
- Proprietary
Since
- Since 2020
+2
Unified APIs and SDKs enable Single Sign-On, Directory Sync, passwordless and multi-factor authentication, audit logs, user management, user provisioning, webhook event handling, and admin portal setup for integration with major identity providers and SaaS platforms.
- United States
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!
Cost / License
- Free
- Open Source (ISC)
Since
- Since 2024
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.
Cost / License
- Freemium
- Proprietary
Since
- Since 2026
Netherlands- EU
Onboard, authenticate, and engage your users with Zalter’s APIs. Improve security and user experience with flexible, passwordless authentication solutions.
Cost / License
- Freemium
- Proprietary
Since
- Since 2022
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.
Cost / License
- Free Personal
- Open Source
Since
- Since 2022
