Free browser audio tool
Bass Booster
Add low-end weight to an audio file. Adjust the bass, preview the change, and download a WAV.
Choose an audio file or drop it here
One file at a time · MP3, WAV, M4A/AAC, OGG, FLAC*
0 dB+18 dB
40 Hz250 Hz
Choose a file to get started.
Private by design. Audio is processed in your browser and is never uploaded to a server.
No account. No watermark. WAV export. *FLAC and M4A/AAC playback depends on your browser. Very large files may exceed your device’s available memory.