How to use this tool
- Drop in an audio file.
- Set how many seconds to fade in and fade out.
- Click Apply Fade and download the result.
Frequently asked questions
- What does fade in/out actually change?
- The volume ramps smoothly from silent to full volume over the fade-in duration at the start, and from full volume back to silent over the fade-out duration at the end — instead of the audio starting or stopping abruptly.
- What if the fade durations overlap?
- If fade-in plus fade-out is longer than the clip itself, the two ramps blend into one smooth rise-and-fall over the whole clip rather than clipping or distorting — the volume never exceeds what it would without fading.
- What audio formats can I use?
- Any format your browser can decode as input. The output can be MP3, WAV, OGG, or FLAC.
- Is my audio uploaded anywhere?
- No — the fade is applied entirely in your browser. Nothing is uploaded.
How GetByteRush compares
Most free tools for this online work the same way: you upload your file to their server, wait, then download the result — which means your file (and often your email, for a "free" account) sits on someone else's infrastructure. Here's the actual difference:
| Feature | GetByteRush | Typical online tools |
|---|---|---|
| Data ever leaves your device | No — processed in this tab | Yes, uploaded to process |
| Handles overlapping fade in/out gracefully | Yes | Varies |
| Account required | Never | Often, past a certain usage level |
("Typical online tools" reflects publicly documented behavior of common free file-processing sites as of 2026 — always check a specific competitor's own privacy policy and pricing page, since these details change.)