diagramming to go
Features
Dia is roughly inspired by the commercial Windows program 'Visio,' though more geared towards informal diagrams for casual use. It can be used to draw many different kinds of diagrams. It currently has special objects to help draw entity relationship diagrams, UML diagrams, flowcharts, network diagrams, and many other diagrams. It is also possible to add support for new shapes by writing simple XML files, using a subset of SVG to draw the shape.
It can load and save diagrams to a custom XML format (gzipped by default, to save space), can export diagrams to a number of formats, including EPS, SVG, XFIG, WMF and PNG, and can print diagrams (including ones that span multiple pages).
Main Window

The main window of Dia.
Class Properties Window

Editing class properties in an UML diagram.
Properties Window for a Non-UML Object

For the moment, the property-handling code within Dia is different for UML objects than for non-UML objects. This picture shows the properties window of a non-UML object - "Train 2, angled upward" from the "Map, Isometric" sheet.
Object Sheet Editor

Download Details
- Publisher: LinktoHow and the Dia team
- Date updated: 2010-02-25
- System Requirements: Windows XP/Vista/7, Wine on Linux/UNIX
- License: Free / Open Source (GPL)
- Source Code: Launcher source (included), Dia source, filed as Source (Dia)
- MD5 Hash (for the geeks): fa5db37ce94ade1ab679bdcf1b6892b0