
Description: SlimerJS is a scriptable browser for web scraping and testing, similar to PhantomJS, based on Gecko and Firefox. It provides a JavaScript API for controlling a browser to load pages, extract content, run tests, take screenshots, etc.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: httest is an open-source web server benchmarking and load testing tool. It allows developers to test the performance, scalability, and reliability of web servers and web applications under various workloads.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API