Fade In & Fade Out Audio
Shape the opening and ending of a track with separate durations and three audible gain curves.
Add an audio file
Apply a smooth fade at the beginning, end, or both.
MP3, WAV, M4A, AAC, FLAC, OGG or Opus
Your audio stays on this device.
How to use Fade In & Fade Out Audio
- 1
Choose an MP3, WAV, M4A/AAC, FLAC, OGG or Opus file to display its decoded waveform and playback timeline.
- 2
Enable Fade In, Fade Out or both. Set each with a preset or Custom duration; the editor keeps the combined regions within the track length.
- 3
Select Smooth, Linear or Exponential, then compare Original and Faded playback while the overlay marks the affected waveform regions.
- 4
Set the Output format and bitrate where relevant, click Apply Fade and preview the finished file before downloading it.
Frequently asked questions
About Fade In & Fade Out Audio
Abrupt beginnings and endings often make otherwise finished audio feel unpolished. A short fade can soften a cut, while a longer one can introduce music gradually or let an ambience disappear without a sudden edge. This editor keeps Fade In and Fade Out separate so each side can serve a different purpose.
The waveform is derived from the uploaded recording and shows where each envelope applies. Switching to Faded changes the local preview gain on the same synchronized timeline, making curve and duration choices audible before the file is encoded. Smooth, Linear and Exponential are distinct envelope shapes, not cosmetic labels.
Only the selected beginning and ending gain are altered; the middle, running time, pitch and channel structure remain intact. The chosen curve is carried into final processing, with Same as source and the supported alternative containers available. No remote service receives the recording.