WebMon is a Chrome extension developed by Christian Plesner Hansen. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools.

WebMon offers a convenient solution for monitoring running web apps. By utilizing the webmon.js library, JavaScript code can export information which the extension will then read and display in a popup. This provides developers with an easy way to track and analyze variables in their web applications.

With WebMon, developers can effortlessly monitor exported values from their JavaScript code, aiding in the debugging and optimization process. Its simple and intuitive interface makes it a valuable tool for those working on web app development.