
Description: Gravizo is an open-source diagramming tool that allows users to create a variety of diagrams like flowcharts, sequence diagrams, class diagrams, ER diagrams, Gantt charts, and more using a text-based domain-specific language. Users write Gravizo script in a text editor or document and Gravizo renders it as images.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: yUML is an online tool and service for quickly creating UML diagrams such as use case diagrams, class diagrams, activity diagrams, state machine diagrams, and sequence diagrams. It has a simple syntax for defining the diagrams that allows fast prototyping.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API