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FusionAuth

FusionAuth | 1

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External reviews

93 reviews
from G2

External reviews are not included in the AWS star rating for the product.


    Will H.

Great auth you can self host

  • May 19, 2025
  • Review verified by G2

What do you like best about the product?
Fusion auths documentation is top notch. My team also finds it amazing to be able to self host so we can control our data
What do you dislike about the product?
Not being able to create users with a passwordless login flow. Its quite annoying to work around this
What problems is the product solving and how is that benefiting you?
Easy integration of identity providers saved me a ton of time rolling this myself


    Carlos N.

Fantastic product with even better customer service experience

  • May 19, 2025
  • Review provided by G2

What do you like best about the product?
The team is highly professional, patient, and amicable.
What do you dislike about the product?
So far no downsides!! The team is very much available to schedule quick syncs to answer questions.
What problems is the product solving and how is that benefiting you?
We are using FusionAuth as our identity management solution for our multi-product software applications.


    Wiktor M.

Good Auth for security noobs

  • April 28, 2025
  • Review verified by G2

What do you like best about the product?
Hi! I'm a CS Student that tried FusionAuth for the first time. It was fairly easy to use and implement in web apps. It's very well documented
What do you dislike about the product?
Haven't stumbled on any issues for now :)
What problems is the product solving and how is that benefiting you?
I don't need to write JWT or any other auth solutions by hand whics is a blessing


    Transportation/Trucking/Railroad

Easy to use IAM solution

  • April 24, 2025
  • Review provided by G2

What do you like best about the product?
FusionAuth is a very friendly for teams that want to quickly setup an Identity Management solution for their products.
Their documentation is awsome with a lot of examples and sample projects.
FusionAuth provides a convenient API (and its documentation) to easily integrate your product with IAM solution.
It comes with a lot of features such as Integration with comme IdentityProviders, customizations of emails and much more.

Very easy to setup on a local machine with their docker image or on cloud for you production purpose.
What do you dislike about the product?
Not much to say. :-) It serves our needs very well.
What problems is the product solving and how is that benefiting you?
It allows us to build up an IAM solution management very quickly.
We use it to implement our Oauth2 security patterns.


    Financial Services

Enabling Webhooks and License upgrades

  • April 23, 2025
  • Review verified by G2

What do you like best about the product?
I like the support Slack channel and the easy-to-understand API key UI.
What do you dislike about the product?
I tend to run into caching issues going from different environments/zones. Dev, Stage, & prod, for example.
What problems is the product solving and how is that benefiting you?
Customer/User Identity.


    Computer Software

Great tool to put OAuth2 in place

  • April 23, 2025
  • Review verified by G2

What do you like best about the product?
The best thing about FusionAuth is all the explanations it comes with. It allowed less experienced members of our team to understand how a secure OAuth2 system/procedure works thanks to the multiple graphs provided. The integration wasn't too hard either. It's also something you have to put in place once, but will then literally benefit from/use everyday day.
What do you dislike about the product?
I haven't heard any complaint from the team. However, some members found it to be harder to understand. But, the more experienced members where able to help them thanks to the doc.
What problems is the product solving and how is that benefiting you?
It is allowing us to put in place a fully secure authentication procedure. No need to worry about the security of the Auth process anymore (since we put FusionAuth in place).


    Computer Software

Easy to integrate, flexible in use

  • April 22, 2025
  • Review verified by G2

What do you like best about the product?
FusionAuth stands out as a developer-friendly identity and access management (IAM) platform that excels in ease of integration, flexibility, and multi-tenancy—qualities especially valuable for SaaS providers. I really like the SaaS offering with its development friendly pricing with option to upgrade for a more enterprise level of scalability and availability.
Administration of the SaaS instance is headache free with option to update FusionAuth by a "single" button with a minimal downtime.
IAM admin panel have nice UI/UX which was important at beginning of our IAM adventure because we did not have enough time to integrate IAM admin panel into our application.
What do you dislike about the product?
It would be nice to integrate FusionAuth SaaS offering into our monitoring and uptime tracking solutions. Right now we do not see easy solution for this.
Our custom workflows required to write a library to ensure no possibility of making mistakes when integrating it in our modular backend application.
What problems is the product solving and how is that benefiting you?
FusionAuth enabled IAM/CIAM for our modular application with options to restricts access to modules for specific roles or clients.


    Computer & Network Security

FusionAuth lets me focus on my application, not fighting user management and authn

  • April 15, 2025
  • Review verified by G2

What do you like best about the product?
Offloading user account management to FusionAuth allows me to support a ton of different auth providers without having to write endless glue code and inevitably screw up auth and leave my users vulnerable.

I really like being able to quickly integrate authentication into my app, create users and have them setup their accounts/reset passwords/setup MFA all without having to stand up my own extra infrastructure to do it.
What do you dislike about the product?
I've had some frustrating bugs where user account creation failed with limited feedback. I suspect the reasoning is to avoid things like account enumeration, but it makes troubleshooting difficult without a lot of additional logging on my side.
What problems is the product solving and how is that benefiting you?
I use FusionAuth to manage user accounts (standalone & SSO) for access to our customer portal.


    Makarand B.

Perfect Auth Solution for SaaS

  • April 14, 2025
  • Review provided by G2

What do you like best about the product?
FusionAuth delivered a seamless auth solution for our multi-tenant SaaS without any workarounds.
Onboarding was fast and smooth, Clean APIs, solving our needs right out of the box.
Their customer success team is prompt, helpful, and always available when needed
What do you dislike about the product?
We found the social login integration to have a learning curve,but we had a alternatitve so did not leverage this feature
What problems is the product solving and how is that benefiting you?
FusionAuth is solving our multi-tenant authentication challenges by providing a clean, out-of-the-box solution that doesn’t require workarounds. It allows us to manage users and tenants efficiently, with a fast onboarding process. This has saved us time, reduced complexity, and ensured a more secure and scalable auth setup.


    Information Technology and Services

Fusionauth is great

  • April 14, 2025
  • Review verified by G2

What do you like best about the product?
I like how easy it is to use and administer.
What do you dislike about the product?
I haven't encountered any issues when using FusionAuth.
What problems is the product solving and how is that benefiting you?
We use it for cloud tool user identity and access management.