Audio Fade In / Out
Add smooth fade-in or fade-out effects to any audio file — on the server
Set 0 to skip. Values up to 60s. A gentle fade in/out smooths the start and end of your track.
Server-side FFmpeg handles any format — including HEVC/H.265 files your browser can't play. Files are deleted from the server within 30 minutes.
⚠️ Please don't close or refresh this page until it's done, or you may lose the result.
💡 Upload speed depends on your own network, not our servers — a slow connection just means the bar moves slower. It'll keep going; no need to retry or worry about being charged twice.
Why people choose us
Server-grade processing
Real FFmpeg on dedicated hardware: every format, big files, phone stays cool — no browser limits.
Auto-deleted in 30 min
Uploads and results are wiped from the server within 30 minutes. Nothing is kept, shared or used for training.
Pay with credits
Each job costs a few credits from your balance — free accounts get daily credits too. No hidden fees.
How it works
- 1
Upload any audio file — format doesn't matter, the server decodes it.
- 2
Set the fade-in and fade-out durations (in seconds) — leave either at 0 to skip it.
- 3
Listen to the result on the page and download it. Files auto-delete in 30 minutes.
Frequently asked questions
Can I apply both fade-in and fade-out at the same time?⌄
Yes — set both values and the server applies them in one pass. Fade-in starts at the very beginning of the audio, and fade-out starts at (total duration − fade-out seconds) so it ends right at the end of the track.
What fade curve is used?⌄
The fade uses a triangular (linear) amplitude curve — it decreases or increases the volume evenly across the duration you set, giving a smooth, natural-sounding transition without any abrupt jumps.
What happens to my file?⌄
The upload and the processed file are deleted automatically within 30 minutes. Jobs are only reachable with your session's signed token.
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Audio Trimmer
Cut a precise start/end range out of an audio file — on the server