CiteNetCheck by Max Ohn

CiteNetCheck is an open-source browser extension visualizing a network.

Whenever NCBI's website is being visited by opening a tab containing a paper of their pubmed database, this extension becomes clickable (right to the URL text field). Once clicked, CiteNetCheck first retrieves data about the local citation network of the paper that is currently visited and then displays a visual representation of it. Additionally, the extension shows a few properties of the network such as node degrees and clustering coefficients.