

Selenium HQ and Katalon Studio are competitors in the test automation software category. While Selenium HQ's open-source nature offers flexibility and cost-effectiveness, Katalon Studio's user-friendly interface and premium support provide an edge for enterprises seeking ease of deployment.
Features: Selenium HQ supports multiple programming languages like Java, C#, and Python and integrates with CI tools such as Jenkins. It excels in cross-browser testing and remote execution. In contrast, Katalon Studio simplifies automation with a user-friendly GUI, integrated features for recording and playback, and strong API testing capabilities, enabling easier onboarding for non-technical users.
Room for Improvement: Selenium HQ's documentation can be enhanced, especially for complex web elements like AJAX. Improving cross-browser compatibility and providing more built-in methods could assist less technical users. Katalon Studio should expand language support beyond Groovy and improve its integration with other tools, alongside refining its object repository and reporting features.
Ease of Deployment and Customer Service: Both Selenium HQ and Katalon Studio support on-premises, hybrid, and cloud environments. Selenium relies on a strong community for support due to its open-source nature, while Katalon offers official support for its licensed versions, providing a more structured service for enterprises.
Pricing and ROI: Selenium HQ is free and open-source, making it financially appealing for cost-conscious businesses. Katalon Studio follows a freemium model, with a paid version offering additional features. Despite a higher initial cost, Katalon's user-friendly interface and rapid deployment could justify the investment for companies prioritizing productivity.
It saves almost 80% of your manual testing time, so it is better to switch to Katalon Studio.
We already have the automation pipeline in place, and we are also using the cloud, allowing us to test multiple browsers and platforms simultaneously, which is great for time and cost savings.
I have seen a return on investment with Katalon Studio because the number of resources allocated to the project has reduced, making it very time-saving and efficient.
Katalon's support is not very strong unless you opt for the enterprise version.
I encountered a couple of issues during the initial setup, but customer care resolved them quickly.
Within 24 hours, I received support from the customer support team through their forum.
The marketplace community and forums are what we browse and look after, and we have found solutions whenever we tried to find anything.
I have not had the need to escalate questions to Selenium HQ tech support recently, as open community support is widely available and has been sufficient for our needs.
We achieve scalability through building modular tests, leveraging features such as parallel execution, and using CI/CD integration and pipelines.
It allows me to develop, run, and deploy test cases extensively.
Katalon Studio handles larger projects and more complex test cases very easily.
We can execute thousands of test cases weekly, and our automation coverage using Selenium HQ is approximately eighty-five percent.
It needs more stability when test cases are executed.
In my experience, Katalon Studio is stable, but sometimes I encounter lag and crash issues.
I have not encountered any major bugs or crashes.
Selenium HQ is a scalable solution; it has been in production for the last two years, but I have been working on it for the last six years, so it is definitely scalable.
Parallel execution is available, but not with the free version.
Providing clearer guidance during the trial period for certification and training modules would also help.
There is significant competition, so providing a good offer with extra features could be beneficial.
An automatic update mechanism for Selenium HQ would be beneficial, eliminating the need for manual downloads and updates of browser drivers when new versions are released.
I don't know if we have that capability to provide different data sources such as SQL Server, CSV, or maybe some other databases, so that kind of capability would be great.
The approximate cost is around $8,000.
Although there are free automation software options available, Katalon Studio offers everything in a single hub for a fee.
From a user perspective, Katalon Studio offers good value, particularly for teams looking for quick automation without significant upfront investment.
We can schedule our test cases, and the report which we get can be shared with higher-level management.
Katalon Studio has positively impacted my organization because I have noticed that I can save more than 50% of our time automating test cases.
Now, using Katalon Studio, we have a 50% increase in velocity in the test and create automatic tests.
New features in Selenium HQ make object identification easier without reliance on XPath and CSS.
When we were doing these tests manually, it took several hours of effort, and those hours, when counted on the basis of person days, used to be maybe six or seven months of effort, which we can now do every day by running the pipeline.
| Product | Market Share (%) |
|---|---|
| Katalon Studio | 11.0% |
| Selenium HQ | 5.5% |
| Other | 83.5% |


| Company Size | Count |
|---|---|
| Small Business | 21 |
| Midsize Enterprise | 14 |
| Large Enterprise | 25 |
| Company Size | Count |
|---|---|
| Small Business | 41 |
| Midsize Enterprise | 33 |
| Large Enterprise | 51 |
Katalon Studio is a regression testing tool that enables you to go low-code, boost productivity, and ease scalability. It is suitable for all platforms and operating systems, regardless of application complexity. The software is built on top of the open-source automation frameworks Selenium and Appium, with a specialized IDE interface for web, API, mobile, and desktop application testing. As a robust automation tool, Katalon Studio lets you run automated tests of UI elements, including pop-ups, iFrames, and wait time. The solution is ideal for both large and small organizations.
Katalon Studio Features
Katalon Studio has many valuable key features. Some of the most useful ones include:
Katalon Studio Benefits
There are many benefits to implementing Katalon Studio. Some of the biggest advantages the solution offers include:
Reviews from Real Users
Katalon Studio is a solution that stands out when compared to many of its competitors. Some of its major advantages are that it has a valuable record and playback feature, is user friendly, and has fantastic integration capabilities.
Khurram K., Head of SQA, Project Manager at Vroozi, says, "The best thing about the solution is that there is a record and playback functionality. The solution allows for specific object files [and it] has great multi-parallel languages that work in the facilities here.”
Another PeerSpot user expresses the multiple benefits the solution provides for him exclaiming, “I'd describe it as extremely user-friendly. There's a lot of information that is readily available on the internet, and therefore it's easy to learn about the product itself. The scalability of the product is good. The solution was quite stable throughout the time I used it. We found the installation process to be quite simple. There is also very helpful online documentation that can help you if you ever get stuck during the implementation process itself,” comments a Senior Quality Assurance Analyst at an educational organization.
Tinnaphan W., Professional Services Manager at a non-profit, talks about the Katalon Studio’s advantages. He mentions, “The solution has very good integration capabilities overall. The client has an extremely stable testing framework, and therefore they rely on Katalon to get the results. The reporting is very good.”
Selenium HQ is an umbrella project that includes a number of tools and frameworks that allow for web browser automation. In particular, Selenium offers a framework for the W3C WebDriver specification, a platform- and language-neutral coding interface that works with all of the main web browsers.
Selenium is a toolset for automating web browsers that uses the best methods available to remotely control browser instances and simulate a user's interaction with the browser. It enables users to mimic typical end-user actions, such as typing text into forms, choosing options from drop-down menus, checking boxes, and clicking links in documents. Additionally, it offers a wide range of other controls, including mouse movement, arbitrary JavaScript execution, and much more.
Although Selenium HQ is generally used for front-end website testing, it is also a browser user agent library. The interfaces are universal in their use, which enables composition with other libraries to serve your purpose.
The source code for Selenium is accessible under the Apache 2.0 license. The project is made possible by volunteers who have kindly committed hundreds of hours to the development and maintenance of the code.
Selenium HQ Tools
These three main Selenium HQ tools have powerful capabilities:
Reviews from Real Users
Selenium HQ stands out among its competitors for a number of reasons. Two major ones are its driver interface and its speed. PeerSpot users take note of the advantages of these features in their reviews:
Avijit B., an automation tester at a tech services company, writes of the solution, “The driver interface is really useful. When we implement the Selenium driver interface, we can easily navigate through all of the pages and sections of an app, including performing things like clicking, putting through SendKeys, scrolling down, tagging, and all the other actions we need to test for in an application.”
Another PeerSpot reviewer, a software engineer at a financial services firm, notes, “Selenium is the fastest tool compared to other competitors. It can run on any language, like Java, Python, C++, and .NET. So we can test any application on Selenium, whether it's mobile or desktop."
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