
Description: Free View Expert is a free 2D CAD viewer app for Windows that allows users to open, view, measure, markup, print and convert many popular CAD formats including DWG, DXF, DWF and more. It has basic CAD viewing and measurement features.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tatlin is a free, open-source web design and prototyping tool. It allows users to create mockups and prototypes for web pages and mobile apps. Key features include drag-and-drop design, reusable components, collaboration tools, and support for animations.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API