
Description: ABViewer is a free, open-source Adobe PDF viewer for Windows. It provides basic PDF viewing and annotation capabilities in a lightweight application.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: nanoCAD is a free and open source 2D CAD application that runs on Windows, Mac, and Linux. It has a familiar AutoCAD-like interface and offers a basic set of 2D drafting and detailing tools for drawing floorplans, electrical schematics, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API