yEd

yEd 3.7

Free
yEd is a powerful diagram editor that can be used to quickly.
 
3.19 (See all)

yEd is a powerful diagram editor that can be used to quickly and effectively generate high-quality drawings of diagrams.
Create your diagrams manually or import your external data for analysis and auto-magically arrange even large data sets by just pressing a button.
yEd can be used to automatically lay out complex data sets. Highly sophisticated mathematical layout algorithms can be used either to automatically arrange the diagram elements or to support you when undertaking a manual layout.
Hierarchical Layout enables you to perfectly visualize hierarchical or pseudo-hierarchical scenarios.
Orthogonal Layout produces clear representations of complex networks.
UML-style Orthogonal Layout offers special support for arranging UML class diagrams, for example.
Organic Layout produces clear representations of complex diagrams like ER diagrams, UML diagrams, and many more.
The layout can be restricted so that it fits into a given area (e.g., a rectangle, circle, or ellipse) or a specified aspect ratio.
Circular Layout can perfectly portray interconnected ring and star topologies.
Tree Layout can be used to clearly visualize tree-like structures in many different ways.
Tree layout can consider labels for layout calculation and provides additional alignment options.
A dedicated Swimlane layout algorithm automatically arranges the elements in Swimlane diagrams.

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