Graphviz has many useful features for concrete diagrams, such as options for colors, fonts, tabular node layouts, line styles, hyperlinks, and custom shapes. The Graphviz layout programs take descriptions of graphs in a simple text language, and make diagrams in useful formats, such as images and SVG for web pages PDF or Postscript for inclusion in other documents or display in an interactive graph browser. It has important applications in networking, bioinformatics, software engineering, database and web design, machine learning, and in visual interfaces for other technical domains.
Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks.
Graphviz is open source graph visualization software.
