Sometimes you only wanted the audio
Long-form talks, sets, mixes and interviews are frequently better with the screen off. Pull the audio out and put it on whatever you actually listen on.
Why this is annoying today
Video eats battery and disk
Keeping an hour of video for what is really an hour of audio is a waste of both.
Online converters sound bad
Free converter sites re-encode aggressively, and you hear it.
Playlists take forever by hand
Converting a forty-track playlist one link at a time is an evening gone.
How it goes with Boo
Paste the link or playlist
A single track, or the whole thing at once.
Switch to audio
Pick MP3, M4A, Opus or WAV.
Queue it
Five at a time, with thumbnails so you can see what is what.
Copy it across
Ordinary files — put them on any player you like.
The bits that matter here
Four formats
MP3 for anything, M4A for Apple devices, Opus for size, WAV when quality matters most.
Whole playlists
Expand a playlist and take the tracks you want as audio in one run.
Converted on your machine
The bundled converter does the work locally — nothing is uploaded to a conversion site.
Questions
Which audio format should I pick?
MP3 if you want it to play on absolutely anything. M4A suits Apple devices. Opus gives the best quality per megabyte. WAV is uncompressed — big, but lossless from the source.
Does the quality drop?
Boo extracts the best audio stream available and converts locally, so you avoid the double re-encoding that online converters do. It can never be better than the source, but nothing extra is thrown away.
Is downloading music legal?
Only where you have the right to. Your own recordings, licensed material, podcasts offered for download and public-domain works are fine. Commercial music generally is not — please do not use Boo for that.
Other ways people use it
Start with the free plan
No account, no card, no expiry. Windows 10 and 11.