
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: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: VariCAD Viewer is a free CAD software that allows you to view, measure, and print CAD models. It supports many common CAD formats like DWG, DXF, and STEP. Useful for collaborating on design projects when you don't need full CAD editing capabilities.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API