Audio Volume Booster
Boost or reduce audio volume. Free, no signup, no upload.
How It Works
Select an audio file and adjust the volume slider. Values above 100% boost the volume, below 100% reduce it. Click Adjust Volume and download the result as WAV. No file is ever uploaded to a server.
Why Boost Audio Volume?
Recordings are sometimes too quiet due to microphone distance, low gain settings, or quiet speakers. Boosting the volume makes them audible without re-recording. Be careful with extreme boosts — they can introduce clipping and distortion.