
Description: Runestone is an open-source e-learning platform for writing interactive textbooks in Python. It allows authors to create web-based course content with assignments, visualizations, active code, and more to teach programming.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Kate is a free and open-source advanced text editor for Linux, UNIX, Windows and macOS. It provides syntax highlighting, project management, plugins and other features for programmers and developers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API