
Description: Pencil Project is a free and open source GUI prototyping and mockup tool. It allows users to create wireframes and prototypes for software interfaces and websites quickly and easily, without programming knowledge.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GoVisual Diagram Editor is a vector-based diagramming software for Windows. It allows users to create flowcharts, org charts, mind maps, network diagrams, floor plans, and more. Key features include a drag and drop interface, pre-made templates, styling and formatting options, export to various file types.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API