Networks & graphs

Tools open source to explore relationships: people, organizations, citations, links… as nodes and connections.

Cytoscape Open-source desktop platform for network analysis and visualization.

Cytoscape.js Open-source JS library for graph visualization/analysis in the browser.

Gephi Open-source tool for exploring and visualizing graphs.

igraph Open-source network analysis library (R/Python/C/C++).

sigma.js Open-source WebGL renderer for large graphs in the browser.

Graphviz Open-source graph visualization software using the DOT language.

SNAP Open-source library for large-scale network analysis (C++/Python).

vis.js (community) Open-source libraries for interactive networks and timelines on the web.