DnD Beyond Auto Source Filter is a Chrome extension developed by TechWitch. This free tool falls under the Browsers category, specifically in Add-ons & Tools. The program enables users to automatically filter content by source book on DnDBeyond.com, making it convenient to focus solely on material from owned source books.

By utilizing this extension, users can effortlessly filter out content from source books they do not possess on dndbeyond.com. Simply navigate to a page with advanced filtering, select the desired source documents, and save the filter in the extension settings within your browser. The saved filter will then be applied automatically, streamlining your browsing experience.