Selenium is a widely-used open-source framework for automating web browsers. It supports multiple programming languages like Java, C#, and Python, making it versatile for developers.

Katalon Studio is a powerful automation testing tool that supports web, API, mobile, and desktop applications. It is user-friendly, making it suitable for both beginners and experienced testers.

SoapUI is a widely recognized tool for testing APIs, particularly SOAP and REST services. It offers robust features for functional and load testing, allowing testers to verify the reliability and performance of web services.

Appium is an open-source mobile application automation tool that enables users to test native, hybrid, and mobile web applications. It supports both Android and iOS platforms, allowing for cross-platform testing with a single codebase.

Postman is a powerful tool for API testing, allowing developers and testers to send requests and analyze responses.

LambdaTest is a cloud-based cross-browser testing platform that allows users to run automated tests on a variety of browsers and operating systems.

Tricentis Tosca is an enterprise-grade test automation tool that uses a model-based approach to enhance testing efficiency.

Cypress is a modern front-end testing framework designed for web applications. It enables developers to write and execute tests directly in the browser, providing real-time feedback.

TestComplete is a commercial test automation tool that supports various technologies, including web, mobile, and desktop applications.

Ranorex is an automation testing tool designed for desktop, web, and mobile applications. It combines a user-friendly interface with powerful features to support both technical and non-technical testers.