Gephi is a free and open-source data visualization software designed to visualize networks. Gephi is a downloadable program that enables users to upload their own data, to download plug-ins to scrape data directly from the program, or to in-put data in the data laboratory. Gephi allows users to make static or dynamic graphs, run statistics, apply graph lay-outs, filter data, and export graphs in multiple formats.
Example of the Gephi interface.