Graphviz is described as 'Is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics, software engineering, database and web design' and is a popular Diagram Editor in the business & commerce category. There are more than 50 alternatives to Graphviz for a variety of platforms, including Windows, Mac, Web-based, Linux and Self-Hosted apps. The best Graphviz alternative is yEd Graph Editor, which is free. Other great apps like Graphviz are FossFLOW, Microsoft Visio, Mermaid and Gephi.