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Audio Fade

Add a smooth fade in and fade out to any audio clip and download the result.

Add fades to audio

Duration: —
Fades: —
Fades are applied sample by sample to the decoded PCM data and exported as uncompressed 16-bit WAV.

How to use the Audio Fade

  1. Choose an audio file and set how many seconds the fade in should last.
  2. Set the fade out length and pick a linear or smooth curve.
  3. Click Apply fades and download WAV to save the processed clip.

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Frequently Asked Questions

Common questions about the free online audio fade.

Choose a file, enter the fade lengths in seconds, pick a curve and click Apply fades and download WAV.
A fade in raises the volume from silence at the start of a clip. A fade out lowers it back to silence at the end.
Linear is simple and predictable. The smooth curve uses equal power, so the fade sounds more natural to the ear.
If the two fades together are longer than the file, they are scaled down so they always fit inside the clip.
No. Fading only multiplies existing samples by a gain curve, so nothing is re-encoded and no quality is lost.
Yes. A very short fade of a few milliseconds at each end is a common way to remove clicks and pops.
Browsers cannot encode MP3 or OGG, so the processed audio is saved as uncompressed 16-bit WAV data.
No. The fade is calculated on the decoded samples in your own browser and the file never leaves your device.

Last updated: October 10, 2026