Selenium - 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.
httest - The httest provides a large variety of HTTP-related functionality, useful for implementing all...
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
Uier - Codeless or low-code User Experience test editing and management using Selenium to perform testing...
Browsershots - Browsershots makes screenshots of your web design in different browsers.
SlimerJS - A scriptable web browser for web testing, web scraping, network monitoring...