// effects · tool 15
Bass Booster
Add weight to any track with a studio low-shelf filter. Five presets from Very Light to Extreme, custom frequency and gain, live preview with clipping protection.
Drop your audio file here
MP3, WAV, M4A, OGG, FLAC and more — or click to browse
[ drop works anywhere on this page ]
How to boost bass online
- Drop your file — any MP3, WAV, M4A, OGG or FLAC loads straight into your browser's memory.
- Pick an intensity — five presets from Very Light (+3 dB) to Extreme (+15 dB), or dial in your own frequency and gain with the knobs.
- Preview live — the boost is applied in real time; turn the knobs while it plays.
- Download — export as lossless WAV or MP3, with the limiter catching any clipping.
A bass boost that won't distort
Most online bass boosters just crank a gain value and let your file clip — that crunchy, fizzy distortion you hear on cheap "bass boosted" videos. This tool uses a proper low-shelf filter (the same curve as a studio console's LF band) computed in 32-bit floating point, watches the output level while you preview, and warns you the instant the signal hits the digital ceiling. On export, an optional limiter transparently tames peaks — and if anything still clips, the output is automatically normalized so the file you download never distorts.
Which frequency should you boost?
- 40–60 Hz — sub-bass. Felt more than heard; needs good headphones or a subwoofer.
- 60–100 Hz — kick-drum punch and bass-guitar fundamentals.
- 100–200 Hz — warmth and body; boosting here sounds "bassier" on laptop and phone speakers.
For surgical control over the whole spectrum, use the 10-band Equalizer instead.
FAQ
Will boosting bass distort my audio?
It can — extra gain pushes peaks toward the digital ceiling. This tool warns you the moment the preview clips, and on export the limiter (on by default) catches overs transparently. If anything still clips, the output is normalized.
What frequency should I boost for more bass?
Sub-bass lives around 40–60 Hz, kick punch around 60–100 Hz, warmth around 100–200 Hz. The presets target 100–130 Hz, which reads as "more bass" on most playback systems without getting muddy.
Does it reduce audio quality?
No — the filter runs in 32-bit float, so the processing itself is transparent. WAV export is lossless; MP3 export re-encodes at 192 kbps.
Is my file uploaded?
No. Everything runs in your browser via the Web Audio API. Your file never touches a server.