
Description: Stud.io is a free, open source Lego CAD software that allows users to digitally build Lego models. It has a large library of Lego parts and intuitive building tools for creating detailed Lego designs.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Mecabricks is an online 3D modeling tool targeted at kids and hobbyists to build machines, mechanisms, robots and more out of digital parts. It has an intuitive drag-and-drop interface to assemble models easily without needing CAD expertise.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API