Couchtube is an open-source tool that allows users to stream YouTube videos directly to their CouchDB database, enabling offline viewing and management of YouTube content in a self-hosted environment. The tool lets users search for YouTube videos, download them, and store them locally in CouchDB for future access. With its simple interface, Couchtube is ideal for users looking to create a personal library of YouTube videos, offering a customizable, self-contained solution for organizing and archiving video content without relying on third-party streaming platforms.