yEd is a powerful graph editor that is written entirely in the Java programming language. It can be used to quickly generate drawings and apply automatic layouts to all kinds of diagrams and networks. yEd makes use of the yFiles library which is a Java class library for viewing, editing, optimizing, drawing, and animating diagrams, networks, and other graph-like structures. yEd is built using 100% lightweight Swing components, i.e., it will run on any platform for which there is a suitable Runtime Environment available.Features Interactive Hierarchical Layout can be used to interactively layout hierarchical or pseudo-hierarchical scenarios. Hierarchical Layout can be used to perfectly visualize hierarchical or pseudo-hierarchical scenarios. Orthogonal Layout produces clear representations of complex networks. Organic Layout and Smart Organic Layout produce clear representations of complex diagrams like ER-diagrams, UML diagrams and many more. Organic Edge Router reroutes edges in existing drawings organically. Orthogonal Edge Router can reroute edges in existing drawings orthogonally. Circular Layout portrays interconnected ring and star topologies perfectly. Tree Layout can be used to visualize tree-like structures in many different ways. The tree layout algorithms can also be used on graphs that are almost like trees. a customizable workplace lets you arrange your tool windows to your needs table-like property editors allow you to configure the graphical properties easily Internationalization: yEd has been localized in English, German, and partially in Japanese a sophisticated print preview allows you to preview the printing results (especially useful for poster-printing) Session Management: yEd remembers and manages your settings Undoability support Clipboard facility Keyboard shortcuts for most of the functions Integrated help system Full support for the YGF file format. The native file format. Full support for the XML-based GraphML file format. Full support for the GML graph file format. GML is a popular text-based graph file format. Full support for the XML-based GML graph file format. This is a variant of the GML language that uses XML syntax. Import of arbitrary XML files. An XSLT stylesheet must be given that transforms the XML input into a valid GraphML. Predefined stylesheets for Ant build scripts, the OWL Web ontology language and others are included. Export to the SVG vector graphics file format. Export to the Windows Meta File (WMF) file format. A vector graphics format used in almost any Windows application. Export to JPG and GIF file formats. Export large images as multiple images and HTML tables also supported! Export to BMP (on Windows machines) and PNG file formats.