Katalon has transformed from a simple Selenium/Appium wrapper into a unified, AI-driven Quality Management platform. The platform's recent evolution stands out for several key capabilities: TrueTest™ Autonomous Test Generation: Uses AI agents to analyze real user traffic and journey paths in production, automatically generating functional regression test scripts without requiring manual flow mapping.GPT-Powered Studio Assist: Integrates generative AI directly into Katalon Studio to generate custom Groovy code snippets from natural language, explain complex script failures, and auto-generate test data on the fly.Smart Self-Healing Selectors: Reduces test maintenance by using dynamic dual-locator algorithms and visual AI; if an object ID or XPath changes in a deployment, it automatically recovers during execution and suggests permanent locator updates.Unified Cross-Platform Engine: Executes tests across Web, Mobile (iOS/Android), REST/SOAP APIs, and Windows Desktop within a single unified script framework. Visual Testing AI: Catches layout shifts, pixel distortions, and responsive design breakages using integrated visual regression models directly in the execution pipeline.TestOps Quality Insights: Analyzes historical execution data to flag flaky tests automatically, predict release risks, and deliver root-cause failure analysis. Review collected by and hosted on G2.com.

Bundled package with claude code support will be beneficial Review collected by and hosted on G2.com.

I like Katalon's ease of use, powerful automation features, and user-friendly interface. It automates repetitive testing tasks, helping me save time, identify bugs quickly, improve testing accuracy, and make testing faster, more efficient, and reliable. It also helps me check that websites and applications work properly, and I found the initial setup very easy. Using it with Jira, Git, and Jenkins helps me manage test cases, track issues, collaborate with my team, and automate testing more efficiently. Review collected by and hosted on G2.com.

Katalon’s execution speed could be better, especially with large test suites or multiple test cases running at once. Occasional bugs or delays can affect my workflow. The interface can feel a little complex for beginners, and I’d like more step-by-step tutorials, practical examples, troubleshooting guides, and beginner-friendly videos, along with clearer explanations of advanced features and error messages. I’d also like more affordable pricing. Review collected by and hosted on G2.com.

Katalon offers a good balance between manual and automation testing. It’s easy to learn, even for beginners, and has powerful options for advanced users. I like how it supports different types of testing (Web, API, Mobile) in one platform. The test recorder and object spy make creating test cases much faster. Review collected by and hosted on G2.com.

The performance could be improved for complex test suites, and sometimes browser drivers or version mismatches cause issues. The execution logs could also be more detailed to make troubleshooting easier. Review collected by and hosted on G2.com.

The low-code approach, ease of adoption, and ability to scale automation are the biggest strengths for me. Katalon supports multiple testing types in one platform and integrates well with CI/CD. KRE, reusable components and AI/self-healing capabilities also help make regression automation easier to manage at scale. Review collected by and hosted on G2.com.

Performance and stability with large regression suites could be improved. Licensing costs when scaling execution can also be a challenge, and I’d like to see further improvements in debugging and self-healing capabilities. Review collected by and hosted on G2.com.

All-in-One Solution, Low-Code & No-Code Automation, Pre-Built Test Framework, Rich Built-in Reports & Analytics, Easy CI/CD Integration, Built-in AI & Self-Healing Tests and Data-Driven Testing Review collected by and hosted on G2.com.

Performance Issues – Katalon Studio can be resource-intensive, leading to slow performance, especially with large test suites. Also Limited Flexibility Compared to Open-Source Tools – While it provides a codeless option, customization and complex scripting can sometimes be more restrictive than Selenium or Appium. Review collected by and hosted on G2.com.

What I like most about Katalon is its user-friendly interface and how easy it is to create automated test cases. It supports web, API, and mobile testing, which helps reduce manual testing effort, and it also provides clear, easy-to-understand test execution reports. Overall, it saves time, improves testing efficiency, and makes test automation much easier to manage. Review collected by and hosted on G2.com.

Sometimes, advanced test scenarios require additional scripting knowledge, and maintaining test cases can be challenging when application UI elements change. Test execution can also be slower when handling large test suites. Improving execution speed and debugging capabilities would make Katalon even better. Review collected by and hosted on G2.com.

The facility to create scripts by recording actions through browsers, the ability to use variable data to execute numerous tests with different data, is the best automation tool I have used and still exploring their longest capabilities. Review collected by and hosted on G2.com.

The platform seems to use a lot of hardware resources. I'm on an 8GB laptop and it gets slow when I use the platform. Review collected by and hosted on G2.com.

It now enables team to use multiple features free of cost. Review collected by and hosted on G2.com.

Time taken to execute the scripts can be optimised as it is time taking for large projects. Review collected by and hosted on G2.com.

Simplicity, ease and convinence bundled with a plethora of features that has made testing and test orchestraion a cake walk. Scaling up is also pretty easy and fast Review collected by and hosted on G2.com.

Nothing. Everything is perfect about katalon studio. I can talk in kength about the pros and pros of this fantastic tool that is helping the customers around the globe Review collected by and hosted on G2.com.

Katalon's built-in features, AI Assistance & easy integrations with JIRA and DevOps, to mention a few. Our coverage using Katalon has been much faster, close to 8 to 10x. Most importantly, the support from the team is very good. Review collected by and hosted on G2.com.

The only downside I see is the price being a little high, but the features and support outweigh it. Review collected by and hosted on G2.com.