Greasy Fork is available in English.
YouTube video downloader, supporting 1080p, 720p, 480p, MP4, WebM, m4a, etc, support subtitle download (.srt .ass .vtt .lrc, etc), can be customized to download video, audio or composite video. (Based on y2b.123345.xyz, there is no need to jump, as shown in the figure below)
< Σχολιασμός για τον κώδικα 【已失效】YouTube Downloader (support video, audio, subtitle download)
如何自己搭建下载服务器