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Upload an audio file
Choose or drop an audio file your browser can decode.
Audio Tools
Audio Fade In / Fade Out
Add a fade in, fade out, or both to an audio clip and export the result as a new file.
Add a smooth fade in, fade out, or both to an audio clip, preview it, and export a new WAV file, entirely in your browser. Need to change the overall level instead? Try the Audio Volume Changer.
Your audio is processed locally in your browser. It isn't uploaded to our servers.
Drag files here
or tap below to choose files from your device
Supports common audio formats your browser can decode (MP3, WAV, M4A, OGG, and more)Maximum 300.0 MB.
How it works
Private audio fading in your browser
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Set the fades
Choose the fade-in and fade-out length and a curve, then preview the result.
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Apply and download
Export the result as a WAV file and download it with a custom filename.
Use cases
When this comes in handy
Smooth out a recording's start or end
Avoid an abrupt start or a hard cutoff on a voice memo, podcast clip, or field recording.
Prepare a clip for a playlist
Add a short fade out so a track doesn't end jarringly before the next one.
Soften a sample before looping
Fade the edges of a sample slightly so a loop doesn't click or pop at the seam.
FAQ
Common questions
Is my audio uploaded anywhere?
No. Decoding, preview playback, fading, and export all happen locally in your browser.
What's the difference between the curve options?
Linear ramps at a constant rate. Smooth (an S-curve) eases in and out of the ramp, which often sounds more natural. Exponential starts slowly and speeds up, which can sound more even to the ear for fade-outs in particular. All three start at silence and end at full level.
Can the fade in and fade out overlap?
No. If the two lengths you choose would overlap, you'll see a message asking you to shorten one of them.
Can I preview the fade before exporting?
Yes. Preview plays the clip with the fade applied before you export anything.
What audio formats can I upload?
Whatever your browser's built-in audio decoder supports — most browsers handle MP3, WAV, M4A, and OGG. If a file can't be decoded, you'll see a clear message rather than a silent failure.
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