ドアテン is a Chrome add-on developed by hanachin. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools. This free program allows users to create and apply templates for Doorkeeper event descriptions.

With ドアテン, users can easily create templates on the options page and then paste them into the event descriptions on Doorkeeper. The add-on also provides the ability to update the templates directly from the options page. By clicking the "Update Event Description" button on the event editing page in Doorkeeper, users can easily update only the template portion of the event description.

ドアテン is a convenient tool for Doorkeeper users who frequently organize events and want to streamline the process of creating and updating event descriptions. With its user-friendly interface and helpful features, ドアテン proves to be a valuable add-on for those in need of efficient event management on Doorkeeper.