Best Free Customer Identity and Access Management (CIAM) Software

FusionAuth is a purpose-built Customer Identity and Access Management (CIAM) platform that gives organizations complete control over their user identity lifecycle. It enables secure registration, authentication, authorization, and user management at scale, while supporting modern protocols like OAuth2, OIDC, and SAML. With features like social login, MFA, passwordless auth, consent management, and robust data privacy controls, FusionAuth helps businesses deliver seamless, secure digital experiences across web, mobile, and API channels. Its flexible deployment (on-prem, cloud, hybrid) and API-first design make it ideal for organizations needing customizable, compliant CIAM solutions without vendor lock-in.

World's fastest MFA with the highest login success rate above 99%. Highly secure, password-free login in just two seconds. MIRACL works on any device or browser, removing the barriers to authentication to optimise the the user experience, decrease costs, and win lost revenue. Protect your users. Simplify their journey. MIRACL Trust offers a safer, smoother authentication experience. One step. No passwords. No problem. Traditional multi-factor authentication is slow and cumbersome. MIRACL is a smoother, safer alternative to traditional MFA. 2 seconds to log in with error rates as low as 1/10th that of passwords. No passwords necessary. One PIN, and you’re in. Our cryptographic technology means that user info stays with users. MIRACL Trust offers an effortless login experience that puts users first, rolls out hassle-free, and keeps data locked up tight. PSD2 SCA compliant, GDPR compliant and satisfies NJ Gaming MFA requirements.

HYPR fixes the way the world logs in. Organizations are faced with the challenge of achieving secured and seamless authentication coupled with a flawless user experience at a time when it’s more critical than ever. HYPR’s passwordless multi-factor authentication (PMFA) platform decouples authentication from the organization’s current and future identity providers and eliminates the traditional trade-off between security and user experience by providing uncompromising assurance and consumer-grade experience with true passwordless and phishing-resistant MFA. The solution is trusted by more than 60M users worldwide. With deployments taking hours rather than weeks or months, organizations decrease the risk of attack, increase positive user experience, and lower operational costs.

Authress, Complete Auth API for B2B. Authentication & Authorization gets complicated quickly, even if it appears easy, there is a lot of hidden complexity in authorization, you don’t want to do it on your own. It takes time to get authorization right In simple cases, it takes an average software team 840 hours to implement authorization logic. As you add features to your application, this number grows rapidly. Without expertise, you leave your door wide open to malicious attacks. You risk compromising your user data, non-compliance with local regulations, and massive business losses. * Secure authorization API--Instead of building your own authorization logic, call our API * Granular permissions--Define multiple levels of access and group them by user roles. As granular as you want * Identity Provider integrations--Plug in any of your preferred ID providers with a simple API call. * SSO and full user management