Organise YouTube videos into searchable catalogues, import playlists, choose a featured video or embed an individual player. Includes catalogue filters, local thumbnail caching, click-to-play embeds, separate administrator permissions and editable Design Manager templates. Useful for websites that maintain video libraries without uploading video files to their own hosting. Requires CMSMS 2.2.0 or later and a site-owned YouTube Data API v3 key. The bundled layout uses Bootstrap 5.3 and Font Awesome. MIT licence. Source, banner and support: https://github.com/MasterCatsUK/CMSMS-YouTubeCatalog