Dia is free (open source) drawing software. Sketch your favorite structured diagrams! Windows version available as a free download.
Need flowchart software for Mac? Lucidchart is an online diagramming tool that makes creating, sharing and exporting flowcharts on Mac OS easy. Try it FREE.
Download ClickCharts free flowchart diagramming software to easily draw flowcharts and map out a visual representation of a data flow or other process.