
Description: Mongrel is a fast HTTP 1.1 web server library written in Ruby for the Ruby on Rails and Sinatra web frameworks. It is light, easy to install and configure, and good for development and testing environments.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Mongrel2 is an open-source web server written in C and designed for high performance and concurrency. It builds on ideas from Mongrel 1 and other servers, focusing on ease of configuration, stability, and modern features.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API