Free Audio Fade Maker | Fade In & Fade Out | WebToolsPro

Audio Fade In & Fade Out

Apply smooth volume fade-ins and fade-outs to your audio tracks effortlessly.

Note: Max file size is 20MB and max duration is 7 Minutes to ensure smooth offline processing.

Processing...

Click to Upload Audio File

Supports MP3, WAV, M4A, OGG

track_name.mp3
00:00 / 00:00
Fade Settings
Fade-In Duration 0.0s
Fade-Out Duration 0.0s

How To Use

Upload: Select any MP3 or WAV file. Ensure it is under 20MB.
Set Fades: Use the sliders to set how many seconds the audio should take to fade in (start) and fade out (end).
Visual Preview: Look at the player bar! You will see red zones highlighting exactly where the audio will fade.

Understanding Curves

Linear Curve: The volume increases or decreases at a perfectly steady, straight rate. Good for short, snappy fades.
Smooth (Exponential): This matches how the human ear naturally perceives sound. It creates a much smoother, cinematic fade effect without sudden drops.

Frequently Asked Questions

Why does the export save as a WAV file instead of MP3?

WAV is an uncompressed, universal audio format. When you apply fades and re-render the file, saving it as a WAV ensures that the track retains its pure original quality without suffering from double-compression issues.

Is my audio uploaded to a server?

No! The entire processing, including Live Preview and rendering the final WAV file, happens 100% locally inside your browser's memory using the Web Audio API. It is extremely fast and completely private.