
Description: MyPaint is a free and open-source raster graphics editor specialized for digital painters. It has a focus on painting rather than image manipulation and uses a brush engine to simulate real media like oils or watercolors.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Charcoal is a minimalist drawing software focused on digital sketching and concept art creation. It offers an intuitive interface for fast drawing, uses graphics tablet stylus pressure for natural drawing strokes, and has useful tools for basic operations like layers, shapes and colors.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API