ExtraChannels is a Chrome extension developed by ismail kharrobi. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This free tool aims to provide users with the ability to check for extra channels that exist in a Discord server, even if they don't have permission to access them.

Upon installing ExtraChannels, if you already have Discord open in your browser, you will need to refresh the Discord page for the extension to take effect. Once installed and activated, you can simply click on the extension icon to turn it on. When you enter any Discord server, you will find an extra icon above the toolbar, specifically in the Discord server or channel.

ExtraChannels is a helpful tool for users who want to discover hidden channels within Discord servers that they may not have access to. It provides an easy way to explore and uncover additional channels, enhancing the overall Discord experience.