A GraphViz tool interface that allows users to enter DOT language definitions and generate corresponding graph visualizations, with error handling for invalid inputs.
Graphviz offers four specialized layout engines—dot, neato, twopi, and circo—each optimized for different graph structures: dot for hierarchical directed graphs, neato for force-directed networks, twopi for radial layouts, and circo for circular topologies. Understanding these engines and testing them in browser-based editors helps software architects create clearer, more readable diagrams without node overlaps and crossing lines.