
Description: PlantUML is an open-source tool for creating UML diagrams from plain text. It supports all standard UML diagrams like use case diagrams, class diagrams, sequence diagrams, etc. PlantUML allows users to write simple textual descriptions which are then transformed into UML diagrams.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: DotEditor is a free, open-source, cross-platform diagramming and vector graphics editor. It allows users to create flowcharts, UML diagrams, ER diagrams, mind maps, org charts, and more. Key features include a simple and intuitive interface, drag-and-drop functionality, template library, export to various file formats, and community-driven development.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API