Loading Shrinkify...
Loading Shrinkify...
Easily increase or decrease the volume of your audio files without losing quality. 100% private local processing.
Upload Files
Drag & drop files here, or click to select
Drag & drop audio files here
Supported: MP3, WAV, AAC, OGG, FLAC, WMA, M4R • Max recommended: 200MB
Volume calibration is often the final step separating a draft from a deliverable. The Volume Adjuster supports raw gain changes (±dB) and automatic loudness normalization — ensuring your output plays consistently across headphones, laptop speakers, and phone earbuds without requiring manual adjustment from listeners.
A raw gain boost adds a fixed dB increase regardless of current loudness — right when you know exactly how much louder the file needs to be. Normalization analyzes peak amplitude and sets gain so the loudest point reaches a target (−1 dBFS), preventing clipping and producing broadcast-compatible output automatically.
A gain boost applies a fixed dB increase regardless of current loudness. Normalization analyzes peak amplitude and automatically sets gain so the loudest point reaches a target level (typically −1 dBFS), preventing clipping automatically.
Yes — if the source already has peaks near 0 dBFS, adding gain pushes those peaks into the clipping zone. Use normalization mode to calculate the maximum safe boost and prevent this automatically.
Yes. Process multiple files together and each one is independently normalized to your target level — your entire back catalog can be standardized without manually adjusting any file.
Check out our technical guides to learn more about how browser-side processing works.
Read Glossary