  Introduced by Callahan and Kosaraju back in 1995, the concept of
well-separated pair decomposition (WSPD) has occupied a special significance in
computational geometry when it comes to solving distance problems in $d$-space.
We present an in-browser tool that can be used to visualize WSPDs and several
of their applications in $2$-space. Apart from research, it can also be used by
instructors for introducing WSPDs in a classroom setting. The tool will be
permanently maintained by the third author at
https://wisno33.github.io/VisualizingWSPDsAndTheirApplications/.
