It's simplicity. I have been using it for at least 5 years now for my authentication solution. A true plug-and-play, and it just works. Review collected by and hosted on G2.com.

Sometimes the community docs are out of date. But for the most part, it gets me where I need to be.

I do wish they add a wayt o make the Action Trigger code editor bigger or resizable! Review collected by and hosted on G2.com.

What I like best about Auth0 is how effortlessly it handles complex identity requirements without making your life complicated. I used feature like SSO integrations, user access management and MFA Review collected by and hosted on G2.com.

The biggest pain point for me has been the complexity around multi-tenant architecture setup. While Auth0 supports it well in theory, the initial configuration can be quite tricky, especially when you're trying to manage tenant-specific SSO connections Review collected by and hosted on G2.com.

I use Auth0 for my SAAS application and am greatly helped by the ease of implementing its comprehensive authentication features without needing much manual coding. The Auth0 UI is very attractive and nice. Additionally, the number of free monthly users provided is quite large compared to other services, allowing me to implement authentication without having to worry about difficult setups and high costs. Review collected by and hosted on G2.com.

The documentation can still be improved by providing more guidance on sample code. Then, provide more detailed and beginner-friendly tutorials and LLM. The initial setup is quite good but lacks detail and intuitiveness. Review collected by and hosted on G2.com.

Auth0 makes handling authentication much simpler and more secure without adding unnecessary complexity. What i like best is how quickly you can set up login, signup and social authentication without having to build everything from scratch. It also gives a lot of flexibility with security features like multi-factor authentication, role-based access, and integration with different identity providers. The documentation is clear and the platform scales well as applications grow. Overall, it saves a lot of development time while still keeping security strong and reliable. Review collected by and hosted on G2.com.

Auth0 can feel a bit complex once you move beyond basic authentication. There are a lot of settings, rules and configurations, which can be overwhelming at first and take time to fully understand. Another downside is pricing. As your user base grows or you need advance features, costs can increase quickly which may not be ideal for similar teams or early stage products. Review collected by and hosted on G2.com.

I like how Auth0 offers a very simple integration into Next.js applications compared to other auth providers. The SDK is robust and easy to work with, which is a huge plus for me. I also appreciate that Auth0 provides a much more complete set of features than if we were to write everything ourselves. Additionally, the initial setup was a 10/10 for us, making the transition smooth and efficient. Review collected by and hosted on G2.com.

It was a bit difficult to update sessions when they expire on Next.js server components. While this isn't necessarily an Auth0 issue, they could provide a complete solution for these cases. Review collected by and hosted on G2.com.

I find Auth0's UI very easy to navigate and use, which made onboarding and configuration very easy. Their user management for my customers via a SaaS model is very powerful and extremely useful for triaging authentication issues with our applications. The initial setup of Auth0 was very easy. Review collected by and hosted on G2.com.

Their support is the worst of any software vendor I've ever had the displeasure of having to engage with. They don't have any support route if you are locked out of your account, forcing you to create a new account to even create a support ticket to try and get access to your official tenant account. Their own authentication service is also broken very badly as if you use a federated login option without ever setting a password, then no longer have access to those federated service(s), you are permanently locked out of your account. There is no way to do a password reset if you simply never had a password set on your account. Their official support response was to simply re-create everything with our new account we used to open the support ticket originally. We abandoned them for this. Review collected by and hosted on G2.com.

The speed at which we got secure authentication running across our applications was genuinely surprising for a team that had previously attempted to build auth in house. Social login enterprise SSO and MFA were all live within days rather than the weeks we had budgeted for. The documentation is thorough enough that our developers rarely needed to go beyond it which kept the integration work moving without constant blockers. Review collected by and hosted on G2.com.

Pricing scales up faster than expected once user volumes start growing and the jump between tiers is noticeable. Review collected by and hosted on G2.com.

That I can integrate with other systems to allow for the authentication to be passed on to our customers but still allow for some authentication to go through our server where they don't have systems like google or Microsoft setup. It is quick to setup and allows us to focus on our platform. Review collected by and hosted on G2.com.

For us it is making sure we have the budget for the number of unique users each month. Review collected by and hosted on G2.com.

An easy, reliable and scalable authentication system. It's an extremely useful and secure tool for integrating a pre-packaged login system into an app, without having to write code myself, saving time and ensuring the right level of protection. It supports virtually all major login systems such as Google, Facebook, Apple login, etc. Review collected by and hosted on G2.com.

Usage needs must be correctly calibrated based on potential accesses to the app to define the correct profile. Costs can increase significantly if the user base or feature usage grows. Review collected by and hosted on G2.com.

In my day-to-day work as a backend developer at Sternico, I really appreciate how Auth0 removes a whole category of problems from my plate. I work a lot with C#, ASP.NET Core, REST APIs, and Onion Architecture, and integrating Auth0 into that stack has been surprisingly smooth. Their SDKs and documentation fit naturally into the .NET ecosystem, and features like MFA, passwordless options, and role-based access are basically ready to go. I no longer have to write or maintain piles of custom authentication code, which is a huge relief, especially in a domain like railway operations where security and reliability matter a lot. It lets me stay focused on building solid business logic instead of messing around with token lifecycles every week. Review collected by and hosted on G2.com.

Pricing model isn’t always easy to predict. Some important features only pop up in higher tiers, which can be a challenge when planning long-term usage across multiple applications. Review collected by and hosted on G2.com.