PDDON是一款完全免费的轻量级专业在线画图和低代码工具。目前已具备绘制流程图、UML图、架构图、类图、序列图、部署图、活动图、状态图、用例图、思维导图、ER图等等设计图。PDDON is a completely free online lightweight professional drawing and low code tool. At present, it has the ability to draw flow chart, UML diagram, architecture diagram, class diagram, sequence diagram, deployment diagram, activity diagram, state diagram, use case diagram, mind map, ER diagram and other design diagrams.
