
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: Webinject is an open-source web proxy and HTTP toolkit that allows you to intercept, inspect, and modify web traffic on the fly. It can be used for testing, security analysis, and debugging web apps and APIs.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API