FadeInAudio
Fade In Audio
Apply a smooth volume increase at the beginning – perfect for intros and gentle starts
Drag & drop an audio file or click to browse
How to add fade in:
- Select an audio file (MP3, WAV, OGG, M4A, FLAC, etc.)
- Adjust fade in duration (how long it takes to reach full volume)
- Choose fade curve: linear (even), logarithmic (slow start), or exponential (quick start)
- Click "Preview Fade In" to hear the effect (real‑time)
- Choose output format (MP3 recommended) and bitrate in the settings panel
- Click "Apply Fade In & Export" – the processed audio will be created locally
- Download the result and enjoy smooth beginnings
All processing happens in your browser using Web Audio API – files never leave your device.
Export Settings
Higher bitrate = better quality but larger file.
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