Technology

GraphML

An XML-based file format designed to define, store, and share complex graph structures and their associated metadata.

GraphML provides a standardized, XML-based framework for representing structural network data (including directed, undirected, mixed, and hierarchical graphs). Developed by the graph drawing community, it separates structural topology (nodes and edges) from application-specific attributes (such as weights, labels, or coordinates) through a flexible extension mechanism. This design makes it a highly compatible exchange format supported by major visualization tools like yEd and Gephi, as well as network analysis libraries like NetworkX.