There are various tools available for automated testing across different domains, including web applications, mobile applications, APIs, and more. Here are some popular automated testing tools categorized based on their primary use cases:

Web Application Testing:

Selenium:

• A widely-used open-source tool for automating web browsers. Selenium supports multiple programming languages (Java, Python, C#, etc.) and can be used for functional testing of web applications.

Cypress:

• A JavaScript end-to-end testing framework that is often used for testing modern web applications. Cypress provides real-time reloading, automatic waiting, and an easy-to-use API.

WebDriverIO:

• A JavaScript-based end-to-end testing framework built on top of WebDriver. It supports various testing frameworks (Mocha, Jasmine) and can be used for cross-browser testing.

Protractor:

• An end-to-end testing framework for Angular applications. It is built on top of WebDriverJS and is specifically designed for testing Angular applications.

Mobile Application Testing:

Appium:

• An open-source mobile application automation tool that supports both Android and iOS platforms. Appium allows you to write tests using multiple programming languages.

XCTest and XCUITest:

• XCTest is a framework for writing unit tests in Swift, while XCUITest is an extension for UI testing on iOS. These are native testing frameworks for iOS applications.

Espresso:

• A native testing framework for Android applications. Espresso provides a concise and reliable way to write UI tests for Android.

API Testing:

Postman:

• Originally known for API development and testing, Postman now also offers automated testing capabilities. It allows you to create and run API tests easily.

RestAssured:

• A Java library for testing RESTful APIs. It integrates well with popular testing frameworks like JUnit and TestNG.

Performance Testing:

Apache JMeter:

• An open-source tool for performance testing and load testing. JMeter can simulate a heavy load on a server, network, or object to test its strength and performance under different conditions.

LoadRunner:

• A performance testing tool from Micro Focus that simulates user activity and analyzes system behavior under load.

Cross-Browser Testing:

BrowserStack:

• A cloud-based platform that allows you to perform cross-browser testing on various browsers and devices. It supports both manual and automated testing.

Sauce Labs:

• Another cloud-based platform for testing web and mobile applications across different browsers and devices.

These tools cater to different aspects of automated testing, and the choice often depends on the specific requirements of the project, the technology stack being used, and the type of testing needed. It's important to evaluate the features, compatibility, and ease of use of each tool based on your project's needs.