
Description: PartXplore is an open-source parametric CAD software focused on mechanical parts and assemblies. It has tools for solid modeling, assemblies, 2D drawings, sheet metal design, and renderings.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: IDA-STEP Viewer is a free, open source CAD viewer that supports STEP (STandard for the Exchange of Product model data) files. It allows users to open, view and investigate STEP files containing 3D mechanical CAD models.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API