About FusionAuth

FusionAuth is an authentication and authorization platform built for developers that provides flexible, API-first identity management. It supports passwords, passwordless login, SSO, MFA, social login, and advanced threat detection. FusionAuth offers flat-rate pricing without per-MAU costs and can be self-hosted or cloud-deployed. Every feature is accessible through APIs for seamless integration.

Pros & Cons

Pros

Free Community plan with unlimited users
Flat-rate pricing — no surprise per-MAU costs
API-first design with every feature accessible via API
Self-hosting option for full data control
Comprehensive auth features rival Auth0 at lower cost

Cons

Key Features

Password, passwordless, and social login

Single sign-on (SSO) across applications

Multi-factor authentication (MFA)

Advanced threat detection

Breached password detection

Role-based access control

API-first architecture

Self-hosted or cloud deployment

Pricing

Community

Free

Unlimited users
Core authentication
Self-hosted
Social login
Basic MFA

Featured In

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FusionAuth