Increase Audio Volume: make any audio file louder without distortion

Upload an audio file and boost its volume from 50% up to 400%. A built-in soft limiter pulls back peaks that would clip, so the result stays clean instead of crunchy. See the waveform update live as you drag the slider, preview the boosted audio, then download as MP3 at the quality you need or as lossless WAV. Everything runs in your browser: your audio never leaves your device.