Auth0

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Read 152 Auth0 reviews and testimonials from customers, explore 118 case studies and customer success stories, and watch 5 customer videos to see why companies chose Auth0 as their Identity & Access Management Software

Auth0 is a cloud service that provides a set of unified APIs and tools that instantly enables single sign-on and user management for any application, API or IoT device. It's modern identity infrastructure, built for developers. Auth0 provides open source SDKs for all popular platforms, all popular operating systems, all popular devices and all popular programming languages. It allows connections to any identity provider from social to enterprise to custom username/password databases. Auth0 is obsessed with making identity, authentication and authorization simpler for modern applications.

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  • 152 Testimonials View
  • 118 Case Studies View
  • 5 Customer Videos View
Customer Rating Review Score based on 4833 reference ratings
4.8/5.0 (4833)
  • Fall 2026 Market Leader Passwordless Authentication Software
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Featured Testimonials

  • “We now have a robust solution in place for authentication and security thanks to Auth0. Knowing that our users trust us with their digital life and that we can honor …

    Rolf Larsen Chief Executive Officer and Founder

  • “Auth0 FGA has fundamentally transformed our ability to manage workspaces. Before, relationship-based access control across multiple workspaces was simply not feasible. With Auth0 FGA, we can instantly set up new …

    Bryce Easley Senior Software Engineering Manager

  • “Identity was critical for the development process. Many users access Fern through GitHub, and a lot will have their documentation set up to be open source. We needed to make …

    Catherine Deskur Deployed Engineer
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Featured Case Studies

  • How Zapier unified authorization across products with Auth0’s Fine-Grained Authorization

    Timi Chu Group Product Manager

  • Innit Cooks Up Connected Ease with Auth0

    Eugenio Minvielle President and Founder

  • Headspace Finds New Growth Opportunities With Auth0

    George Torres Director of Engineering
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Featured Customer Videos

  • How NTUC Enterprise Built a Single Customer View for Their Brands
    Play Video
    Winson Lim VP, Core Product Development
  • How Moogsoft Boosted Signups Using Social Logins
    Play Video
    Russ Smith Director of Product Engineering
  • Kiva - Customer Success Story (Van Mittal Henkle - Principal Software Engineer and Engineering Manager)
    Play Video
    Van Mittal Henkle Principal Software Engineer and Engineering Manager
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Additional Auth0 Information & Resources

Read Auth0 Reviews, Testimonials & Customer References from 152 real Auth0 customers.

Browse Auth0 Case Studies, Customer Success Stories, & Customer References from 118 businesses that use Auth0.

Watch Auth0 Customer Videos to learn why 5 businesses chose Auth0.

FeaturedCustomers has 2,120,582+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.