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Bass Booster

Add deep, punchy bass to any track.

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MP3, WAV, FLAC, M4A, OGG

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Free Online Bass Booster

Want your music to hit harder and feel fuller? Our free bass booster lifts the low frequencies of any track so it sounds deeper and punchier on headphones, earbuds, car systems and Bluetooth speakers. Some songs are mixed with a thin low end, and many small speakers struggle to reproduce bass at all. A boost brings back that satisfying thump you can feel, turning a flat-sounding track into something with real energy and weight.

You are in complete control of how much low-end to add. Drag a single slider to dial in anywhere from a gentle warmth to a heavy, club-style rumble, measured in decibels (dB). A small lift of a few decibels adds body and richness without changing the character of the song, while a bigger boost makes the bass the star of the show — perfect for hip-hop, EDM, trap, drum & bass and other styles built around a strong beat.

It is a favourite for everyday situations. Boost a quiet track before a party so it fills the room. Add punch to music for the gym or a run to keep your energy up. Compensate for tinny laptop or phone speakers that lose the low notes. Or simply give an old favourite a fresh, modern feel. Because you can preview and adjust, it is easy to find the sweet spot where the bass is powerful but still clean.

The whole effect is applied right inside your browser, so your audio is never uploaded to a server. That keeps your music private, makes the process fast, and means there is no sign-up, no watermark and no limit on how many tracks you can boost. Drop in a file, set the boost, and download a richer, more powerful MP3.

How it works

1

Drop your file

Choose any audio file — MP3, WAV, FLAC and more. It is processed locally and never uploaded.

2

Set the boost

Drag the slider to add anywhere from a gentle 0 up to a heavy +20 dB of bass.

3

Boost & download

Click the button and download your bass-boosted MP3.

Frequently asked questions

How much bass should I add?▾
Around +6 to +10 dB adds noticeable punch without distortion and suits most songs. Larger boosts give a heavier, club-style low end but can start to distort on tracks that are already bass-heavy.
Why does too much bass sound distorted or muddy?▾
When the low frequencies are pushed too far, they can "clip" — the speaker or the audio runs out of headroom and the sound breaks up. If you hear crackle or mud, lower the boost a little until it is clean again.
Will it help on small phone or laptop speakers?▾
It can help bring out bass those speakers usually miss, but tiny speakers are physically limited in how much low end they can produce. The effect is most dramatic on headphones, earbuds and larger speakers.
Does boosting bass lower the overall volume?▾
Adding bass uses up some headroom, so the tool keeps the level in check to avoid distortion. If a boosted track feels quieter, you can raise your device volume, or pair it with our volume or normalizer tools.
Is my file uploaded?▾
No. The boost is applied entirely in your browser, so nothing ever leaves your device.
What format is the output?▾
The result is saved as an MP3 at 192 kbps, which plays on virtually any device or speaker.

Related Tools

BPM Detector Find the tempo (beats per minute) of any track instantly. Audio Normalizer Even out loudness so your audio plays at a consistent, professional level. Change Volume Boost a quiet recording or turn down one that’s too loud. Music Equalizer Fine-tune bass, mids and treble with a graphic EQ.

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4.9 / 5 · 179 ratings