Extreme Bass Boost Preset

The +18 dB maximum: all bass, no mercy.

Free to use on Mac, Windows, and mobileNo installation requiredTLS encryption keeps your files safe

What is this tool

AudioToolKit applies an extreme bass boost online for free, in your browser. +18 dB is the maximum low-shelf setting: the sub-bass takes over the track. The boosted file downloads as MP3 or WAV, and the filter adds no new distortion, though the result is hot — run the normalizer afterwards if you need headroom.

Drag and drop your file here

MP3, WAV, M4A, AAC, OGG, FLAC, AIFF, AIF, OPUS, WMA, AMR — up to 25 MB per file

Output format

Output

Bass-boosted MP3 or WAV

Accepted formats

.mp3, .wav, .m4a, .aac, .ogg, .flac, .aiff, .aif, .opus, .wma, .amr

Why use this free tool

+18 dB is the ceiling of the bass booster. Use it when the bass must be felt, not heard — and accept that the mids will sit deeper.

How does the free extreme bass boost work?

1
Upload the track.
2
Press Process.
3
Download the result.

Frequently asked questions

How strong is it?

+18 dB — the maximum. The sub-bass takes over the track.

Is it clip-safe?

The filter does not add distortion, but the result is hot; normalize afterwards if needed.

Local processing?

Yes, in your browser.