How it works, what you get, limits
O que faz
Keep the soundtrack and drop the picture.
Como usar
Pick video or audio, choose a container, download. No audio track fails.
O que você recebe
M4A or WebM. Compress if you need the whole video. MP3 is not guaranteed.
Opções e comparação
Output container.
This is extract/remux, not a studio MP3 encoder.
Limites
MP3 encode is not promised. No audio track fails.
FAQ
Always MP3?
Not promised. Typical output is M4A or WebM.
No audio track?
It fails. This page drops the picture and keeps sound.