
Description: Diagrammix is a free, open-source, and cross-platform diagramming software. It allows users to easily create flowcharts, UML diagrams, network diagrams, wireframes, and more. Key features include a simple and intuitive interface, comprehensive shape libraries, real-time collaboration, and output to various file formats like SVG, PNG, and PDF. Diagrammix is a good alternative for tools like Microsoft Visio and Lucidchart, especially for those seeking an open-source and freely-available option.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: VSDConverter is a free tool that converts VSD files from Visio to various other formats like PDF, JPG, PNG, SVG, HTML and more. It allows easy sharing and editing of Visio diagrams without needing Visio installed.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API