Fade Audio

Smooth exits.

Fade in. Fade out. Done.

Runs in your browser. Your recordings never leave your device.

Drop an audio file here

.mp3 .wav .m4a .ogg .aac .flac · tap to browse

Faded. Smooth transitions.

✓ Fwipped
Never left your device
No upload
Works offline
We never hear your audio

Need to add fades to hundreds of files? The offline bundle handles batches with no size limit. $99 once.

Get Bundle →
// How it works

Three steps. Zero uploads.

01
Drop
Drag your audio file onto the page. MP3, WAV, M4A, OGG, FLAC. It stays on your device.
02
Set fades
Choose a preset or drag the sliders for custom fade in and fade out durations.
03
Compare
Listen to the original and faded versions. Download the result.
// Why this is different

Your audio never leaves your machine.

Most online audio editors upload your file to a server. fwip adds fade effects entirely in your browser — your recordings stay private.

fwip works differently. The processing engine runs entirely in your browser. Your audio is read from your device, processed on your CPU, and the result is saved back to your device. No server is involved. We literally cannot see your file.

No server processing

Everything runs on your device using WebAssembly. Your file never touches a network.

No account required

Drop a file. Get a result. No sign-up, no email, no password.

No subscription

Free in the browser. $99 once for the offline bundle. That's it. Forever.

Works offline

The desktop version works with no internet connection at all.

// How fwip compares

fwip vs the rest.

fwipmp3cut.netAudacityAdobe Audition
Upload requiredNoYesNoNo
Account requiredNoNoNoYes
Price$15 / toolFreeFree/yr
Files leave deviceNeverAlwaysNeverNo
Works offlineYesNoYesYes
Batch processingOffline bundleNoNoYes
// Questions

Frequently asked.

What is a fade in/fade out?▾
A fade in gradually increases the volume from silence to full level at the start of your audio. A fade out does the opposite — gradually decreasing volume to silence at the end. This creates smooth, professional transitions.
How long should my fade be?▾
For music: 2-5 seconds is typical. For podcasts: 1-2 seconds works well. For sound effects: 0.5-1 second. The right length depends on your content and preference.
Can I add just a fade out?▾
Yes. Set the Fade In slider to 0 seconds and only use the Fade Out slider. You can use any combination of fade in and fade out, including just one or the other.
Does fading change the audio length?▾
No. Fading only changes the volume at the start and end of your file. The total duration remains exactly the same.
What formats are supported?▾
MP3, WAV, M4A, OGG, AAC, and FLAC as input. Output is available as MP3 or WAV.
// Related tools

You might also need.

AUDIO
Trim Audio
Cut start and end points.
 AUDIO
Adjust Volume
Make audio louder or quieter.
 AUDIO
Merge Audio
Combine multiple audio files.
 AUDIO
Clean Audio
Remove background noise.
 AUDIO
Reverse Audio
Play audio backwards.
 AUDIO
Remove Silence
Auto-remove silent sections.

Like it? Own it.

Offline. No browser. No internet. No excuses.
$15
This tool
  • Fade Audio · offline
  • Batch processing
  • No file size limit
  • 3 devices · one payment
Join waitlist →
$49
Audio bundle
  • All 30 audio tools · offline
  • Batch processing
  • No file size limit
  • 3 devices · one payment
Get Audio bundle →
$99
Complete suite
  • All 200+ tools · offline
  • No file size limit
  • No daily use limit
  • 3 devices · one payment · updates included
Join waitlist →
One-time payment · 3 devices · Updates included · Mac + Windows + Linux