
Description: Penpot is an open source design and prototyping tool for UI and UX designers. It allows designers to create wireframes, mockups, and prototypes with support for canvas grids, symbols, shared libraries, and sketch imports. Penpot has vector editing capabilities, component libraries, and developer handoff features.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Diagramiq is a free online diagramming and flowchart software. It allows users to easily create flowcharts, UML diagrams, mind maps, wireframes, and more. The intuitive drag-and-drop interface makes it simple for beginners as well as professionals.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API