# Authentication, Authorization and User Management

## Authentication, Authorization and User Management

* [asgardeo.io](https://wso2.com/asgardeo) - Seamless Integration of SSO, MFA, passwordless auth and more. Includes SDKs for frontend and backend apps. Free up to 1000 MAUs and 5 identity providers.
* [auth0.com](https://auth0.com/)—Hosted free for development SSO. Up to 2 social identity providers for closed-source projects.
* [Authgear](https://www.authgear.com) - Bring Passwordless, OTPs, 2FA, SSO to your apps in minutes. All Front-end included. Free up to 5000 MAUs.
* [Authress](https://authress.io/)—Authentication login and access control, unlimited identity providers for any project. Facebook, Google, Twitter and more. First 1000 API calls are free.
* [Authy](https://authy.com) - Two-factor authentication (2FA) on multiple devices, with backups. Drop-in replacement for Google Authenticator. Free for up to 100 successful authentications.
* [Clerk.dev](https://clerk.dev/)—User management, auth, 2FA/MFA with prebuilt UI components. Free up to 500 monthly active users.
* [duo.com](https://duo.com/)—Two-factor authentication (2FA) for website or app. Free for 10 users, all authentication methods, unlimited, integrations, hardware tokens.
* [Jumpcloud](https://jumpcloud.com/)—Provides directory as a service similar to Azure AD, user management, single sign-on, and RADIUS authentication. Free for up to 10 users.
* [LoginRadius](https://www.loginradius.com/)—Managed User Authentication service for free. Email registration and 3 social providers.
* [logintc.com](https://www.logintc.com/)—Two-factor authentication (2FA) by push notifications, free for 10 users, VPN, Websites and SSH
* [MojoAuth](https://mojoauth.com/) - MojoAuth makes it easy to implement Passwordless authentication on your web, mobile or any application in minutes.
* [Okta](https://developer.okta.com/)—User management, authentication and authorization. Free for up to 1000 monthly active users.
* [onelogin.com](https://www.onelogin.com/)—Identity as a Service (IDaaS), Single Sign-On Identity Provider, Cloud SSO IdP, 3 company apps and 5 personal apps, unlimited users
* [Ory](https://ory.sh/) - AuthN/AuthZ/OAuth2.0/Zero Trust managed security platform. Forever free developer accounts with all security features, unlimited team members, 200 daily active users, and 25k/mo permission checks.
* [SuperTokens](https://supertokens.com/) - Open source user authentication that natively integrates into your app - enabling you to get started quickly while controlling the user and developer experience. Free for up to 5000 MAUs.
* [Warrant](https://warrant.dev/)—Hosted enterprise-grade authorization and access control service for your apps. Free tier includes 1 million API requests per month and 1,000 authz rules.
* [ZITADEL Cloud](https://zitadel.com)—A turnkey user and access management that works for you and supports multi tenant (B2B) use cases. Free for up to 25'000 authenticated requests, with all security features (no paywall for OTP, Passwordless, Policies and so on).

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