DAG (directed acyclic graph) JavaScript visualization with D3. dagre-d3 is used for graph layout and rendering. Good for displaying flowchart and PERT chart-like graphs.
Just open html file in browser, no server is required. Different graphs can be loaded using request parameter, e.g. index.html?graph2.js.
D3 JavaScript Data Visualization library
dagre Graph layout for JavaScript
dagre-d3 D3-based renderer for dagre