
Description: Potamus is a free, open-source diagramming and wireframing tool for creating sitemaps, flowcharts, wireframes, and more. It has a simple and intuitive drag-and-drop interface to easily arrange shapes and connectors on a canvas.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Clementine is a free, open source music player available for Windows, Linux, and macOS. It supports playing local music files as well as streaming from online services. It has an intuitive interface and features like library organization, internet radio, playlists, and audio effects.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API