fatcousin
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jump to any tool — keyboard-first launcher.
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browse every utility in one place.
manifesto
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why fatcousin exists — local-first, no uploads.
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save this toolset to your device — works offline.
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jump to any tool — keyboard-first launcher.
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audio fade-in / fade-out · linear · exp · log · ease · single or batch · runs locally
[
input
]
drop audio file(s)
mp3 · wav · aiff · flac · m4a · aac · ogg · opus · webm
Select file
[
status
]
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ready
ready
local
verify
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