trustytrojan.dev/yt/dl-fw

this is a serverless version of yt/dl. it uses ffmpeg.wasm for muxing, and ytdl-core-browser to scrape youtube.
this eliminates the need for a backend, at the cost of requiring CORS to be disabled...
you will need an extension like CORS Unblock for this page to work. (don't worry... everything here is open-source)
a/v only
use the buttons above for the highest quality audio/video!
videos will be saved in mkv format; audio-only in mp3.
you can also mix and match audio/video formats below.
customize
left-click formats to select for download.
right-click to copy links to streams from youtube.

video

itag quality codec bitrate

audio

itag quality codec bitrate

both

itag quality codecs bitrate