add audio — free browser tool | fatcousin | fatcousin

tools→browse every utility in one place.manifesto→why fatcousin exists — local-first, no uploads.

ready

local

// fatcousin · local process monitor

00:00:00

// session started —

// tool · add-audio

// origin · —

// user agent · —

// verdict · files processed locally · verify by watching NET events below

▮

NET · no outbound requests · all processing local

this panel shows everything. if something looks wrong, it is wrong. that's the contract.

add or replace a video's audio track · mix volumes · real-time · runs locally

[video]

drop video

mp4 · mov · webm · mkv

Select file

[new audio]

drop audio

mp3 · aac · wav · ogg · or another video file

Select file

[mode]

strips the original audio entirely — only the new track plays

[exec]

[status]

>ready