Free Online Bass Booster

SnipSound's Bass Booster adds deep, punchy low end to any track — a clean low-shelf boost, and the file you download is measured and kept under 0 dBFS so the bass hits hard without clipping. Drop in an MP3, WAV, OGG, FLAC, AAC or M4A, pick how much boost, preview it live, and download. Your files never leave your device — 100% private, no watermark.

No file handy?

Drop audio file here

or click to browse — processed in your browser — your file never leaves your device

MP3WAVOGG FLACAACM4A

100% in your browser. Your file stays local — audio never leaves your device, we can’t even access it ourselves. Privacy policy.

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🎧 Phone speakers can’t play deep bass. Plug in headphones or earbuds to hear the boost — the download has it either way.

Original: — New duration: —

Drag across the waveform to snip a part & loop it · scroll to zoom · How it works

Replay from marker

When on, changing a setting replays from the green ⟳ marker on the waveform (drag it anywhere — it defaults to the start). When off, changes apply live while the song keeps playing.

Turn your bass-boosted track into a video — add it over your footage and export, free with no watermark.

How do I boost the bass in a song online for free?

Drop your audio onto SnipSound's Bass Booster, choose a boost level (Deep is +8 dB at ~110 Hz), preview, and download. A low-shelf filter lifts the low end, and the rendered file is measured and brought under 0 dBFS so the download cannot clip — all in your browser, your files never leave your device.

Why a limiter matters

Most online bass boosters just crank a low-shelf filter, which pushes the loudest moments past 0 dB and adds harsh clipping. SnipSound puts a soft limiter after the boost, so the low end gets louder and fuller while the peaks stay controlled — the difference between "boosted" and "broken".

Want more effects?

This tool shares one engine with the rest of our social-audio effects. Try them all in the Audio Effects Studio — bass boost, 8D, vaporwave, nightcore, sped-up and more, with your audio carried across each effect so you can A/B them.

Frequently Asked Questions

How do I boost bass in a song?▼

Drop your audio in, pick a boost level (Warm, Deep, or Extreme), preview, and download. The boost is a low-shelf filter centred near 110 Hz, and the rendered file is measured and brought under 0 dBFS so the download cannot clip.

Will boosting the bass distort or clip my audio?▼

The file you download will not clip: once the boost is rendered we measure its loudest peak and bring the whole file under 0 dBFS. A soft limiter shapes peaks on the way through, but the ceiling is what guarantees it — a limiter alone does not, which is why this page used to promise more than it delivered. The live preview is not ceilinged the same way, so a very loud track can sound hot while you audition it; the download is the clean one.

Is the bass booster free?▼

Yes, completely free with no sign-up and no watermark. It all runs in your browser.

Does my file get uploaded?▼

No. Processing happens entirely in your browser — your file never leaves your device.

What's the difference between this and an equalizer?▼

This is a one-click low-end boost. For full per-band control, use our Audio Equalizer, which has a 10-band EQ.

What formats are supported?▼

MP3, WAV, OGG, FLAC, AAC, M4A in; MP3 or WAV out.