Boost sub-bass, bass, and upper-bass frequencies in real-time. Preview the effect instantly, then export your file — all in your browser.
Supports MP3, WAV, OGG, FLAC and more
4 simple steps to get started.
Drop or select any MP3, WAV, OGG, FLAC, or AAC file.
Choose Subtle, Medium, Heavy or Punchy, or dial in custom dB values per band.
Hit play to hear the boosted audio instantly through your browser.
Export the bass-boosted file in your chosen format.
Everything you need to edit audio — right in your browser.
Boost low-end frequencies to add depth and punch to your audio.
Merge multiple audio files into a single track seamlessly.
Convert between MP3, WAV, OGG, FLAC, and more formats.
Increase or decrease the volume of your audio files.
Speed up or slow down audio without changing the pitch.
Add smooth fade-in and fade-out effects to your tracks.
Record audio directly from your microphone in the browser.
Adjust bass, treble, and mid frequencies to fine-tune sound.
Reverse any audio file instantly for creative effects.
Create custom ringtones from any audio file you have.
Remove background noise and clean up your audio recordings.
Extract audio tracks from video files quickly and easily.
Shift the pitch of audio up or down without changing speed.
Reduce dynamic range for consistent, polished audio levels.
Remove vocals from songs to create karaoke or instrumental tracks.
Split audio files into equal or fixed-length segments.
Everything you need to know about bass booster.
Boost sub-bass, bass, and upper-bass frequencies in real-time. Preview the effect instantly, then export your file — all in your browser. No downloads, no sign-ups, and no accounts. Editing and preview run locally in your browser using the Web Audio API; exporting sends your file over an encrypted connection to our processing server, which deletes it as soon as your download finishes.
Simply upload your audio file — MP3, WAV, OGG, FLAC, or M4A — and use our intuitive editor to make your changes. Upload your file, Pick a preset or adjust bands, Preview in real-time, Apply & Download. Once you're satisfied, export the result in your preferred format instantly.
Whether you're a podcaster, musician, content creator, or just someone who needs a quick audio edit, Bass Booster is built for you. It works on any device — desktop, tablet, or mobile — across all modern browsers including Chrome, Firefox, Safari, and Edge.
A bass booster is a set of filters that raise the level of the low end without touching anything above it. This one gives you three bands rather than a single knob, because low frequencies do not all do the same job. Sub Bass at 80 Hz is the weight you feel more than hear — the rumble under a kick drum. Bass at 250 Hz is body and warmth, the range that makes a mix sound full rather than thin. Upper Bass at 500 Hz is punch and definition, the part that lets a bassline stay audible on small speakers.
Each band takes up to 12 dB of boost or cut. That is a large range: 12 dB is roughly four times the perceived loudness in that band, so a small number goes a long way. Preview runs live in your browser through the Web Audio API, which means you can move a slider and hear the change immediately rather than exporting to find out.
Boosting adds level, and level can clip. If the original track is already mastered close to full scale, adding 10 dB at 80 Hz will push the peaks past what the format can represent and you get distortion — usually heard as a crackle or a loss of definition on the loudest passages. If you hear that, cut the other bands instead of pushing one further, or reduce the overall level with the Volume Changer first and then boost.
Small speakers cannot reproduce 80 Hz at all. Boosting sub bass for playback on a phone or a laptop mostly wastes headroom on frequencies you will never hear, while eating into the range you will. For those devices, work with the 250 Hz and 500 Hz bands, which sit inside what small drivers can actually produce.
The Equalizer covers the same job with ten bands from 32 Hz to 16 kHz and up to 24 dB each, so anything the bass booster does can be done there too. The reason to use this tool instead is speed: three sliders pinned to the frequencies that matter for low end, with no decisions to make about which band to reach for. Use the equalizer when the problem is not only in the bass, or when you need to cut something specific higher up.
Preview happens entirely on your device. Only when you click Apply & Download is the file sent over an encrypted connection to be processed with the gains you chose, and it is deleted as soon as the download finishes.
Everything you need to know about Bass Booster.