FortiAuthenticator Alternatives

Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).

JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.

The best of Auth0 and Keycloak combined. Built for the serverless era.

freemium $25.0 / Monthly (25'000 authenticated requests)

Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.

Auth0 is a program for people to get authentication and authorization services for their own business use.

Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.

privacyIDEA is an enterprise ready, open-source multi factor authentication system.

Developer-first Access Management

OpenSSL is a free and open source software cryptography library that implements both the Secure Sockets Layer (SSL) and the Transport Layer Security (TLS) protocols, which are primarily used to provide secure communications between web browsers and …

Application and Data, Application Utilities, and User Management and Authentication

Open source implementation of the two-factor authentication HOTP and TOTP schemes.

FREE SSL certificates issued instantly online with Free SSL Certificate Wizard.

Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.