
Selenium
Testsigma
TestMu AI (Formerly LambdaTest)
mabl
Ghost Inspector
TestComplete
Testim
Built on the top of Selenium and Appium, Katalon Studio is a free and powerful automated testing tool for web testing, mobile testing, and API testing.

jQuery
Mercenaries 2: World in Flames
Hitman
Order and Chaos Online
Mass Effect: Andromeda
React
Uncharted 4: A Thief’s End
Prototype JavaScript framework

Which is more popular?
Based on our record, Katalon should be more popular than Prototype. It has been mentioned 12 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | katalon.com | prototypejs.org |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Katalon is recommended for software testing teams and quality assurance professionals who are seeking a cost-effective and versatile automation tool. It's especially well-suited for those who work with diverse technologies and want an all-in-one platform for their test automation needs. Its ease of use makes it accessible for those new to automation, while its advanced features cater to more experienced testers.
Overall verdict
Why this product is good
Recommended for
Prototype.js is recommended primarily for developers working on maintaining or upgrading older web applications that were originally built using this library. It's not advised for new projects, as there are more robust and widely-supported tools available today that offer better performance, features, and community support.
Walkthroughs and reviews on video.
Katalon Studio: Advantage and Disadvantage to Katalon Studio
More videos
PROTOTYPE: 10 Years Later
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Katalon and Prototype. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Katalon Studio is an integrated environment for API, web, desktop, and mobile testing. It provides a rich feature set for comprehensive testing.
Katalon Studio is a versatile testing platform that provides a comprehensive solution for web, API, mobile, and desktop application testing. It's designed for users of all technical levels and features codeless test...
API testing in Katalon Studio is a comprehensive feature that supports all sorts of REST, SOAP/1.1, and SOAP/1.2 calls. Katalon Studio allows testers to collaborate in multiple ways on their API project, including...
We have no reviews of Prototype yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Katalon True Platform is designed for teams making the transition from fragmented toolstacks to a unified quality system. It covers the full testing lifecycle in one platform: manual testing, test automation, test management, test... - Source: dev.to / 5 months ago
TL;DR: For AI-native test generation from specs, try Kusho AI. For the most complete platform with the newest AI Agent Mode, go Postman. For open-source and Git-native workflows, Bruno or Hoppscotch are your best bets. Enterprise teams... - Source: dev.to / 7 months ago
Overview: Katalon Studio now offers a beta AI test case generator capable of producing test scenarios from OpenAPI/Swagger specifications. - Source: dev.to / 12 months ago
It's very weird to realise that this isn't long enough to remember a time when extending native prototypes was en vogue. Source: over 3 years ago
The parent is referring to the Prototype framework (http://prototypejs.org/), not the JS language concept of a prototype. Source: about 4 years ago
Let's not forget about http://prototypejs.org/ & http://script.aculo.us/ for modern Web 2.O. - Source: Hacker News / over 4 years ago
When comparing Katalon and Prototype, you can also consider the following products.

Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.
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Complete AI-driven Test Automation platform for Web apps, Mobile apps and APIs. Simple English commands to automate complex tests easily and effectively with all the flexibility that enterprise teams need!
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Mercenaries 2: World in Flames offers a combination of exciting elements such as Action-Adventure, Third-person Shooter, Single and Multiplayer developed by Pandemic Studios and published by Electronic Arts.
Compare Mercenaries 2: World in Flames to Katalon or Prototype:

World’s first full-stack Agentic AI Quality Engineering platform.
Compare TestMu AI (Formerly LambdaTest) to Katalon or Prototype:

Hitman is the marvelous sixth installment in the Hitman series developed by IO Interactive and published by Square Enix.
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