Audio Fade In/Out
Add a smooth fade in and fade out to any audio — in your browser.
100% in your browser
No watermark
No sign-up
How it works
- Select an audio file — it stays on your device.
- Set the fade-in and fade-out length in seconds.
- Click apply — the fades are added in your browser.
- Your audio downloads automatically.
Frequently asked questions
- Is my audio uploaded?
- No. Fades are applied locally with ffmpeg.wasm; the file never leaves your device.
- Can I fade only one end?
- Yes — set the other duration to 0 to skip it.