How to bass boost a song online
- Drop your track into the upload box — it decodes right in the browser.
- Pick a boost level: Subtle +4, Boost +8, Heavy +12 or Earthquake +15 dB — or set the bass frequency (60–250 Hz) and gain yourself.
- Press Apply effect and compare the boosted preview with the original.
- Download the result as a 320 kbps MP3 or WAV.
This bass booster online applies a low-shelf filter to lift everything below your chosen frequency, then feeds the signal through a fast limiter so the extra energy cannot clip the output. That combination keeps the boost loud and punchy instead of crackly — the usual failure mode of naive bass boost apps. All processing happens locally via the Web Audio API; your music is never uploaded.
Use it to thicken tracks for car audio and gym playlists, give bass-light recordings more weight, or prep bass-boosted versions for edits and memes. For surgical control over the whole frequency range rather than just the lows, open the 10-band Audio EQ instead.
FAQ
How do I bass boost a song without distortion?
The boost here runs through a limiter that catches peaks just below 0 dBFS, so even the +15 dB Earthquake preset stays clean instead of clipping. Very heavy boosts will still sound compressed on cheap speakers — preview before downloading and back off if the low end gets muddy.
What frequency should I boost for more bass?
Around 60–90 Hz adds deep sub rumble you mostly feel, while 100–150 Hz adds punch you clearly hear on normal speakers and earbuds. The frequency slider covers 60 to 250 Hz, so you can aim the shelf where your track needs it; the default of 120 Hz works well for most music.
Is this bass booster free, and are my files uploaded?
It is free with no signup, no watermark and no limits, and your audio never leaves your device. The low-shelf filter and limiter run locally in your browser via the Web Audio API.
What formats can I load and download?
You can load anything your browser decodes — MP3, WAV, FLAC, OGG, M4A and more — and download the boosted version as a 320 kbps MP3 or an uncompressed WAV file.