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Selenium is a suite of tools specifically for testing web applications. Selenium IDE is a Firefox add-on that records clicks, typing, and other actions to make a test, which you can play back in the browser. Selenium Remote Control (RC) runs your tests in multiple browsers and platforms. Tweak your tests in your preferred language.

Watir, pronounced water (acronym standing for "Web Application Testing in Ruby"), is an open-source (BSD) family of Ruby libraries for automating web browsers. It allows you to write tests that are easy to read and maintain. It is simple and flexible.

WatiN - Web Application Testing In .Net

Make test automation more efficient and help developers and testers collaborate. This functional test automation software—formerly QuickTest Professional (QTP)—helps deliver quality software at the speed your business needs. Use a single GUI for automating all types of functional testing. This easy-to-use visual experience helps you create automated testing for both GUI functionality and the back-end service (application business logic) parts of an application.

TestingWhiz™ is a Code-less Test Automation Tool for automating testing of Web, Mobile, Database, API, Cloud, and Desktop Apps. It can perform End-to-end testing like Functional, Regression, Database, Big Data, Web UI, Cross Browser testing & Distributed Execution for Web, Mobile and Cloud Apps.It is based on a proprietary FAST (Flexible Automation Scripting Technology) Automation Engine with 290+ inbuilt Test Commands that eliminates the need for long hours of scripting, enabling users to get up and ready with test automation in the shortest time-frame. »

PhearJS renders dynamic webpages using PhantomJS: fetch a page, render it and return a pretty JSON object. PhearJS is offered as a hosted API as well as an open source solution that you can host yourself.

TOSCA Testsuite powered by TRICENTIS delivers test automation and test management solutions for software testing, software development, application quality assurance, web site testing, mobile testing, browser testing, agile testing and SAP testing. TOSCA is compatiable with HP QuickTest Professional/QTP, IBM Rational Robot, JIRA defect tracking and many others.

Usetrace is a test automation tool from the cloud. Traces are user paths that go through your application using real browsers. For example logging in or buying a product from a web store. The same traces monitor production continuously and replaces manual regression testing each time your app changes. No programming required.

Ranorex Studio provides an all-on-one environment for developing Ranorex test automation projects. In addition to common IDE features like a code editor, code completion and debugging. Ranorex Studio also integrates all of the Ranorex tools and the powerful Ranorex Library in one professional environment.

TestComplete is an automated testing tool, with unmatched support for unit, functional, regression, distributed and HTTP performance testing at the project level. Designed for advanced and novice testers alike, TestComplete will help you achieve thorough Quality Assurance in development from the first line of code right through delivery and maintenance, with no surprises along the way. Ship superior applications, and ship them on time.

Screenster provides visual UI test automation for web applications. It is the only tool that validates the screens that users actually see.

Automate Windows Administration with Automise

QA Wizard Pro automates the functional and regression testing of web, Windows, and Java applications, and load testing of web applications. Using a single application to perform both functional and load tests reduces your software investment and training time, and helps your team test more of an application in less time.