Free Diagram & Flowchart Software for Drawing, Creation & Visualization [Download] Design flowcharts, mindmaps, wireframes and diagrams, includes chart templates to get you started Choose from a variety of symbols and line connector styles, create UML (Unified Modeling Language) standard visual modeling diagrams Edit and customize colors, fills and strokes, simple editing functions include copy, paste, undo and more Seamless sheet overlapping for creating and printing large diagrams, open and edit multiple diagrams simultaneously Detail control for artistic styles for filling and lining, export flowcharts as jpg, gif, png or other image file formats to share or use in other applications