What is "igraph"

igraph is a library collection for creating and manipulating graphs and analyzing networks. It is written in C and also exists as Python and R packages. There exists moreover an implementation for Mathematica. The software is widely used in academic research in network science and related fields. The publication that introduces the software has 1268 citations as of according to google scholar.

igraph was developed by Gábor Csárdi and Tamás Nepusz. The source code of igraph packages was written in C. igraph is freely available under GNU General Public License Version 2.