Bass Booster

Boost the low end of any audio file with a low-shelf filter, right in your browser. A built-in limiter keeps the output from clipping.

A peak limiter automatically keeps the boosted output just under 0 dBFS, so it won't clip even on already-loud tracks.

Output format
MP3 bitrate
Drop an audio file here (up to 200.0 MB)
ReadyFiles are processed on your device and never uploaded.

Frequently asked questions

How does the bass booster avoid clipping?

After boosting the low frequencies, the tool scans the whole track for its loudest peak and scales the output down if needed so it stays at or below -1 dBFS. You get more bass without distortion.

What frequency does the bass boost target?

It applies a low-shelf boost centered around 90Hz, the sub-bass and bass region, so kicks and low bass lines get louder without also boosting midrange vocals or instruments.

Is this the same as normalizing loudness?

No. Loudness normalization changes the overall level; this tool reshapes the frequency balance by boosting the lows specifically, then applies a safety limiter so the result doesn't clip.