Verified User in Consulting
CC
Verified User in Consulting
Enterprise (> 1000 emp.)
"Script-Based Testing Makes Automation Easy"
4/5
What do you like best about Gatling?

I like that it’s possible to write tests via script/tests instead of relying on the GUI, as competitors tend to do.

The report output Review collected by and hosted on G2.com.

What do you dislike about Gatling?

At the beginning, the only supported language was Scala; now Java, Kotlin, TypeScript, and JavaScript are supported as well. Review collected by and hosted on G2.com.

Christophe H.
CH
Christophe H.
Consultant
Mid-Market (51-1000 emp.)
"Incredible tool!"
5/5
What do you like best about Gatling?

Gatling was really useful for me, and it completely changed the way I approach load testing. Review collected by and hosted on G2.com.

What do you dislike about Gatling?

Honestly nothing, the tool is almost perfect Review collected by and hosted on G2.com.

Deodato A.
DA
Deodato A.
DevOps Engineer (CI/CD & Secure SDLC)
Mid-Market (51-1000 emp.)
"Seamless Integrations and Great Out-of-the-Box Reports"
4/5
What do you like best about Gatling?

The integration with other tools, along with the out-of-the-box reports, is what I like most. Review collected by and hosted on G2.com.

What do you dislike about Gatling?

When I first started using Gatling, it was only compatible with Scala, but that’s no longer the case. What I dislike most is that it isn’t fully open source. Review collected by and hosted on G2.com.

Response from Diego Salinas of Gatling
Edit edit

Thank you so much for the review.

We’re happy to hear Gatling’s integrations and reports have been useful in your performance work, especially when tuning microservices and keeping cloud costs under control.

We also appreciate your note on open source. Gatling’s open-source roots are a big part of who we are, and we’ll keep listening to feedback from the community as the product evolves.

Thanks again for sharing your experience with Gatling.

Bian J.
BJ
Bian J.
Principal Software Engineer
Mid-Market (51-1000 emp.)
"Gatling Enterprise API Streamlines Load Testing and Scheduling"
5/5
What do you like best about Gatling?

Gatling and the Gatling Enterprise API streamlines our load testing development and scheduling flow.

We were able to build a command line tool to automate the simulation scheduling flow so that our developers could iterate fast. Review collected by and hosted on G2.com.

What do you dislike about Gatling?

I think more code examples, especially completed projects could be really helpful for users to understand the expected usage of certain features. Review collected by and hosted on G2.com.

Response from Diego Salinas of Gatling
Edit edit

Hi Bian, thank you for sharing this!

It's great to hear the Gatling Enterprise API helped you build a CLI tool for automating simulation scheduling. That kind of fast iteration loop is exactly what we built the API for, so it's rewarding to see it used that way. And knowing it's helping you prep for high-stakes events like Black Friday and Cyber Monday makes it even better.

Your point on code examples and complete sample projects is well taken. A full, working example often saves more time than reading the docs feature by feature, so this is useful input as we keep expanding what we share.

Thanks again for the detailed feedback, and for being a Gatling user.

Diego from Gatling

Ankit K.
AK
Ankit K.
Small-Business (50 or fewer emp.)
"Highly Functional Tool for Performance Testing"
4.5/5
What do you like best about Gatling?

I use Gatling for performance testing and I really like its functionality and reports. It's been good for all aspects so far. The initial setup was easy too, which was a plus. Review collected by and hosted on G2.com.

What do you dislike about Gatling?

Nothing Review collected by and hosted on G2.com.

Response from Diego Salinas of Gatling
Edit edit

Thank you for sharing your positive experience with Gatling! We're thrilled to hear that you find it highly functional for performance testing and appreciate its ease of setup. It's great to know that the tool is helping you assess the performance of your APIs effectively.

If you ever have any questions or need assistance with Gatling in the future, please don't hesitate to reach out. We're here to support you every step of the way.

Diego from Gatling

Evelyn Daniela M.
EM
Evelyn Daniela M.
Senior Software Quality Engineer
Small-Business (50 or fewer emp.)
"Gatling: the powerful, efficient performance tool ready for CI/CD"
5/5
What do you like best about Gatling?

If you are looking for a powerful and modern tool for performance testing, Gatling is one of the best options on the market. Its non-blocking architecture allows it to simulate thousands of users with efficient resource consumption, and its code-based approach facilitates integration with CI/CD pipelines. Additionally, it generates detailed, visual, and easy-to-interpret reports. Ideal for technical teams that need precision, speed, and automation in their load testing. Review collected by and hosted on G2.com.

What do you dislike about Gatling?

What I would like to see in Gatling is a more united and active community, where sharing best practices, use cases, and support among users is more common. Additionally, I believe that more concise and structured documentation would help a lot, especially for those who are starting or want to integrate Gatling quickly into their pipelines. Even so, it is a very powerful and efficient tool for performance testing. Review collected by and hosted on G2.com.

Response from Diego Salinas of Gatling
Edit edit

Hi Bian, thank you for sharing this!

It's great to hear the Gatling Enterprise API helped you build a CLI tool for automating simulation scheduling. That kind of fast iteration loop is exactly what we built the API for, so it's rewarding to see it used that way. And knowing it's helping you prep for high-stakes events like Black Friday and Cyber Monday makes it even better.

Your point on code examples and complete sample projects is well taken. A full, working example often saves more time than reading the docs feature by feature, so this is useful input as we keep expanding what we share.

Thanks again for the detailed feedback, and for being a Gatling user.

Diego from Gatling

Rodrigo Antonio C.
RC
Rodrigo Antonio C.
Software Testing Expert Partner
Enterprise (> 1000 emp.)
"A large-scale tool, easy to use and integrate into the testing cycle."
5/5
What do you like best about Gatling?

One of the first tools I used for performance testing, and to this day, it's still the one I use the most to run large-scale tests. It's lightweight, captures flows easily with its recorder, and the logs are easy to understand—making Gatling, for me, the perfect tool for my analyses.

- Excellent (dynamic) reporting

- Support for different programming languages

- Easy-to-understand and learn documentation

- Open source with an easy-to-use injection platform

- Integration in CI/CD Review collected by and hosted on G2.com.

What do you dislike about Gatling?

Although I don't have many remarks, I would like to see the integration with Grafana resumed and the addition of more open-source protocols for the community. Review collected by and hosted on G2.com.

Response from Diego Salinas of Gatling
Edit edit

Hi Rodrigo, thank you for this thoughtful review!

It means a lot to hear that Gatling has stayed your go-to tool over time, and that the recorder, reporting, and CI/CD integration are still holding up well for large-scale testing. It's also great to know Gatling is helping you catch bottlenecks and queuing issues across banking and e-commerce flows: those are exactly the high-stakes environments where catching problems early matters most.

Thanks for the notes on Grafana integration and open-source protocol support too. Both are good signals for us on where the community would like to see more investment, and we'll make sure this feedback gets to the right team.

Really appreciate you taking the time to write this, and for being such a long-time user.

OMER Y.
OY
OMER Y.
Sr. Software Developer
Small-Business (50 or fewer emp.)
"Great to use for performance and QA Automation"
4/5
What do you like best about Gatling?

I really like how Gatling has strengthened its integration with modern CI/CD pipelines, such as Jenkins, GitLab, and GitHub Actions. The ability to seamlessly automate performance tests within DevOps workflows ensures performance benchmarks are met before deployment, which is crucial for high-traffic events like product launches or Black Friday sales. This makes Gatling a go-to for teams aiming for continuous quality.

Review collected by and hosted on G2.com.

What do you dislike about Gatling?

Learning Curve for Non-Developers: Gatling’s Scala-based DSL (Domain-Specific Language) is expressive but can be challenging for testers without programming experience. Improving the documentation with more beginner-friendly tutorials or introducing a GUI-based test recorder (like JMeter’s) could make it more accessible to non-coders, broadening its user base. Review collected by and hosted on G2.com.

Response from Diego Salinas of Gatling
Edit edit

Thank you for the thoughtful review, and especially for calling out our CI/CD integrations with Jenkins, GitLab, and GitHub Actions. Helping teams catch performance regressions before they hit production, especially ahead of high-stakes events like Black Friday, is exactly what we're aiming for.

We also appreciate the feedback on the learning curve for non-developers. Since you last reviewed us, we've made this a priority. We launched a Recorder that lets you generate Gatling scripts from recorded actions rather than writing the Scala code by hand, plus AI-powered migration tools to help teams move existing JMeter and LoadRunner test suites into Gatling. We've also rolled out AI-powered documentation to make it easier to get unstuck without needing deep Scala expertise. Together, these are meant to lower exactly the barrier you described.

We'd love for you to try them out and let us know how they compare to your experience so far. Thanks again for using Gatling and for the detailed feedback.

Syed Ahmed A.
SA
Syed Ahmed A.
Chief Software Architect / Senior Software Engineer
Mid-Market (51-1000 emp.)
"Massive scale, great customization, great customer support"
4/5
What do you like best about Gatling?

The customer support has been some of the best I have come across.

We required complex use cases for requests and gatling's DSL supported all the customizations we needed.

Being able to scale and test load test at massive traffic (the main reason we opted for gatling - we wanted to test at 1 million requests per second from multiple regions) has been amazing Review collected by and hosted on G2.com.

What do you dislike about Gatling?

The public API for automating your scenarios rather limiting. i.e you can run simulations but not create them. Perhaps that has changed now

Although now it supports Java, when we started they only supported Scala. Review collected by and hosted on G2.com.

Eugene A.
EA
Eugene A.
I break stuff for a living
Mid-Market (51-1000 emp.)
"Market leader in the world of performance testing"
5/5
What do you like best about Gatling?

- Gatling is easy to use (even when you do not know Scala at all! I wrote tests on my first day)

- Good OOTB reporting

- Gatling Scala-based DSL allows to write complex scenarios, which are impossible with some other competitors (for example, unpack a protobuf response and assert its elements)

- Impressive performance based on async Akka toolkit

- Cloud managed solution is also available Review collected by and hosted on G2.com.

What do you dislike about Gatling?

There is nothing I *dislike* about Gatling, I really have just one point here:

- Gatling is relatively new so community is smaller than of peers (if you have to write non-trivial solutions, you are likely to be the first to do it) Review collected by and hosted on G2.com.