VOSviewer

VOSviewer is a free software tool for constructing and visualizing bibliometric networks including co-authorship networks, co-citation networks, keyword co-occurrence maps, and journal coupling visualizations from academic publication data. It handles large datasets with thousands of items and provides interactive map visualizations with clustering and density overlay features for exploring research landscape structure. Researchers, librarians, and science policy analysts use VOSviewer to visually map the intellectual structure of scientific fields, identify research clusters, and understand collaboration patterns within and across disciplines.