Cliply is a cross-platform video downloader with a pleasant interface that supports downloads in multiple qualities (144p to 4K) and audio-only extraction.
vib795/pull-vids
GitHub is a platform primarily used for version control and collaboration on software development projects. While you might find some projects related to 4K Video Downloader on GitHub, it's not an official source for obtaining a license key. 4k+video+downloader+license+key+github+top