Node Labeler is an add-on that provides tools for quickly renaming and managing node labels in the node editor. It includes four primary functions accessed through customizable shortcut keys. Users can automatically label selected nodes or reroutes based on the name of the incoming connected socket. The add-on also features a manual labeling pop-up, a batch clearing tool to remove labels from multiple selected nodes simultaneously, and a tool to extrude reroutes from every output socket of a selected node, which utilizes the Node Wrangler add-on.