DOM3D is a Chrome application developed by Orion Reed that offers users a unique way to visualize the Document Object Model (DOM) in three dimensions. This free tool provides a tiny spatial DOM viewer, allowing users to explore the structure of web pages in a 3D environment.

With DOM3D, users can gain a new perspective on how elements are nested within the DOM, making it easier to understand the layout and hierarchy of web pages. This tool falls under the Browsers category, specifically in the Add-ons & Tools subcategory, offering a novel approach to inspecting and interacting with the DOM.