
Description: GraphSketcher is a free, open-source software for drawing different types of graphs and diagrams. It allows users to easily create flow charts, UML diagrams, ER diagrams, network diagrams, mockups, floor plans, and more. Key features include a simple and intuitive interface, auto layout and formatting tools, export to various file types such as PNG, SVG, PDF, etc.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Lybniz is an open-source graphing calculator software for Windows, Linux and macOS. It has an easy-to-use graphical interface allowing mathematical equations and graphs to be drawn on screen dynamically. Useful for students, teachers, engineers and anyone who needs to visualize and analyze mathematical functions.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API