How long should a fade be?

Two to five seconds sounds natural for music; half a second to one second is plenty for ringtones and short effects; podcast intros usually use about three seconds.

Are my files uploaded to a server?

No. Everything runs locally in your browser via WebAssembly. Files never leave your computer and are discarded when you close the page.

Do I need to sign up or pay?

No. The site is completely free, requires no account, has no usage limits and adds no watermarks.

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🌗Audio Fade In and Fade Out Online - Smooth Intros and Endings

Ramp the opening up from silence and let the ending taper off, so nothing starts or stops abruptly. Useful for ringtones, video scores and podcast intros — and you can run a whole folder at once.

Free · No sign-up · Runs in your browserLast updated: 2026-10-26

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How to use Audio Fade In/Out

1Upload one or more audio files
2Set the fade-in and fade-out lengths
3Click start and download the result

FAQ

How long should a fade be?: Two to five seconds sounds natural for music; half a second to one second is plenty for ringtones and short effects; podcast intros usually use about three seconds.
Are my files uploaded to a server?: No. Everything runs locally in your browser via WebAssembly. Files never leave your computer and are discarded when you close the page.
Do I need to sign up or pay?: No. The site is completely free, requires no account, has no usage limits and adds no watermarks.