FusionAuth

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140 reviews
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  • 9 categories
Average star rating
4.5
Serving customers since
2009
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FusionAuth Reviews

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Profile Name
Star Rating
97
38
4
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0
Stoyan K.
SK
Stoyan K.
Senior Software DeveloperSmall-Business (50 or fewer emp.)
01/07/2026
Validated Reviewer
Review source: Organic

User-Friendly Integration with Easy Setup

I use FusionAuth for authentication and user management, including for SSO and roles. I find it user-friendly and that it works out of the box. It's easy to integrate too. The setup is straightforward, and the documentation is clear, which enhances my experience significantly. Compared to Keycloak, FusionAuth feels less complicated and more straightforward, making the initial setup pretty easy.
Firdavs S.
FS
Firdavs S.
Owner/FounderSmall-Business (50 or fewer emp.)
12/12/2025
Validated Reviewer
Review source: Seller invite
Incentivized Review

Easy Setup, Predictable Pricing, Needs UI Improvement

I find FusionAuth very easy to set up and use, with pretty understandable API features. The interface is clean and easy to use, which is good. The pricing is pretty predictable, especially when compared to other services. It's good for developers like me who own a website, thanks to its clean APIs and good API documentation, which is easy to understand and take action on.
Olivier JM M.
OM
Olivier JM M.
Software Engineer
11/20/2025
Validated Reviewer
Review source: Seller invite
Incentivized Review

Easy Integration and Self-Hosting Flexibility with FusionAuth

I use FusionAuth for authentication in my react app, and it has been incredibly beneficial. I don't need to create my own authentication system from scratch, which saves me a lot of time and effort. It handles security issues effectively, so I don't have to worry about the complexities and potential vulnerabilities of rolling my own authentication system. I also love that I can add multiple providers simultaneously without dealing with each one separately, which greatly streamlines integration and management. FusionAuth offers good pricing, which is an attractive aspect for me. Its easy integration process ensures that I can incorporate it into my projects without unnecessary hassle. One of the standout features is that FusionAuth can be self-hosted, which is a significant advantage compared to other alternative solutions, allowing for more control over the deployment. Additionally, the initial setup was straightforward due to the very clear documentation, and the community support has been quite helpful, providing valuable assistance when needed.

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HQ Location:
Broomfield, US

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What is FusionAuth?

Every application needs secure authentication, but building it in-house creates massive technical debt and security risk. FusionAuth is the API-first CIAM platform that eliminates the "identity provider tax" by giving developers total control. Unlike SaaS-only vendors that force data into their cloud, FusionAuth offers a flexible, hybrid deployment model that runs on any infrastructure, anywhere in the world. For technical leaders, FusionAuth replaces brittle homegrown systems with a scalable, single-tenant architecture. By providing enterprise-grade features like SSO and MFA out of the box, we help teams slash development time by up to 90% and ensure 100% data sovereignty. With predictable pricing and developer-led support, FusionAuth tames identity complexity so you can focus on your core product.

Details

Year Founded
2009
Website
fusionauth.io