
Description: STP Viewer is a free software tool for viewing and analyzing STP network protocol data. It allows you to load capture files, inspect STP frames and BPDUs, analyze STP topology and events, and gain insights into Spanning Tree operations.
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