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Graph Modeling Language (GML) is a hierarchical ASCII-based file format for describing graphs. It has been also named Graph Meta Language.

• Example

• Applications supporting GML

• See also

• References

• External links

A simple graph in GML format:

• Cytoscape, an open source bioinformatics software platform for visualizing molecular interaction networks, loads and save previously-constructed interaction networks in GML.

• igraph, an open source network analysis library with interfaces to multiple programming languages.

• Gephi, an open source graph visualization and manipulation software.

• Graph-tool, a free Python module for manipulation and statistical analysis of graphs.

• NetworkX, an open source Python library for studying complex graphs.

• Tulip (software) is a free software in the domain of information visualisation capable of manipulating huge graphs (with more than 1.000.000 elements).

• yEd, a free Java-based graph editor, supports import from and export to GML.

• The Graphviz project includes two command-line tools (gml2gv and gv2gml) that can convert to and from the DOT file format.

• Wolfram Language, a general very high-level programming language, supports GML import and export.

• Graph Query Language (GQL)

• DGML

cite-ref-1[1]

cite-note-11. ↑ Plenz, M., Frank, A., Graph Language Models, 2401.07105, cs.CL, 2024, https://arxiv.org/abs/2401.07105, access date: 2025-07-03

• GML: A portable Graph File Format, Michael Himsolt - 2010/11/30 (archived version)

• Unravelling Graph-Exchange File Formats, by Matthew Roughan and Jonathan Tuke, 2015, https://arxiv.org/pdf/1503.02781.pdf