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FusionAuth

Read 40 FusionAuth reviews and testimonials from customers, explore 35 case studies and customer success stories, and watch customer videos to see why companies chose FusionAuth as their Passwordless Authentication Software

FusionAuth is a single-tenant CIAM solution that deploys on-premises, in your private cloud, or on their fully-managed FusionAuth Cloud. Their JSON REST API provides advanced identity management that is easy for developers to deploy and implement on any platform or framework.

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  • Fall 2025 Top Performer Passwordless Authentication Software
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40Testimonials

  • "I chose FusionAuth because it seemed like it would meet all of our foreseeable needs without any significant per-user costs."

    Trevor Robinson Co-Founder and CTO

  • “FusionAuth allows us to remain focused on the actual effort and shields us from fighting with upstream identity providers in strange environments that we're not familiar with. Allowing [FusionAuth] to …

    Justin Davis Head of Engineering

  • "I chose FusionAuth over others because I can run the FusionAuth service on my own private data center."

    DolphinVC
39 more testimonials currently locked

35 Case Studies

  • DataStax Improves Performance by 59%, Optimizes Customer Experience With FusionAuth

    Arlen Thurber Software Engineer

  • AdCellerant Seamlessly Migrated Their Data From MongoDB To FusionAuth

    James Humphrey Senior Director of Technology

  • Sunfinity uses FusionAuth as their centralized auth system and connected it to …

    Matthew Reschke Chief Information Officer
34 more case studies currently locked

Additional FusionAuth Information & Resources

Read FusionAuth Reviews, Testimonials & Customer References from 40 real FusionAuth customers.

Browse FusionAuth Case Studies, Customer Success Stories, & Customer References from 35 businesses that use FusionAuth.

FeaturedCustomers has 1,933,274+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.