yEd Graph Editor in 90 seconds

The yEd Graph Editor is a free diagram editor: https://www.yworks.com/yed

yEd is a powerful diagram editor that can be used to quickly and effectively generate high-quality drawings of diagrams.
It supports many diagram types:
BPMN diagrams, flowcharts, family trees, semantic networks, UML class diagrams, organization charts, mind maps, swimlane diagrams, and many more.
Create your diagrams manually or import your external data for analysis and auto-magically arrange even large data sets by just pressing a button.

Download for free today: https://www.yworks.com/yed or launch the web-app, now: https://yworks.com/yed-live

The yEd Graph Editor application builds upon the diagramming functionality provided by yFiles.

The yFiles diagramming software components (https://www.yworks.com/yfiles) enable you to add high-quality diagramming functionality to your own software applications:
turn your data into clear diagrams with the help of unequaled automatic diagram layout, use rich visualizations for your diagram elements, and give your users an intuitive interface for smooth interaction.
yFiles is available for a wide range of platforms and technologies: from web applications to cross-platform Java(FX) to the Microsoft .NET environment.

The yFiles family of software components is made by yWorks GmbH: https://www.yworks.com