Make your sound sound better. The free sound booster for Chrome — boost volume up to 600% without distortion, with a bass booster and audio equalizer — plus AI mastering, a vocal remover and free online audio tools.
Available on the Chrome Web Store · Up to 600% · No sign-up
Drop your track
Drag & drop or browse files
WAV, MP3, FLAC, OGG, M4A/AAC, Opus up to 250 MB. Processed on your device — nothing is uploaded.
Hear the difference
Press play and flip between the original and the mastered version. Both run through the same engine you'll use on your own tracks.
Sample loop.wav
Synthesised demo mix · processed live in your browser
Real processing, not a recording: EQ, compression, saturation, stereo widening and a look-ahead limiter. Loudness-matched comparisons of your own tracks are on the mastering page.
One place for your entire sound
Mastering, stems, analysis and visuals share one engine and one library — so a project moves from idea to release without leaving your browser.
AI Mastering
Tell SoundBooster how the track should feel — “punchier drums, clearer vocals” — or let it analyse the mix. Every revision is rendered for real and loudness-matched, so you judge the tone, not the volume.
Vocal Remover
Make an instrumental or an a cappella from any stereo song. Rebalance them with volume, mute and solo, then download both — without uploading your song anywhere.
Audio Tools
Check loudness the way streaming services do, see how much they'll turn you down, and convert, trim, tag, re-pitch or clean up files — all on your device.
Visuals
Render audio-reactive visualizers and Spotify Canvas loops from your own song and your own artwork — sized for every platform.
Multitrack editing with BPM, key and chord detection, a metronome and lyrics.
OpenNoise removal, voice cleanup, enhancement and restoration — on your device.
OpenAdd deep, clean bass to any tab in Chrome, or to your own audio files.
OpenMake quiet files up to 6× louder, with a limiter that keeps them clean.
OpenSound booster extension for Chrome
YouTube too quiet? A call you can barely hear? SoundBooster boosts the tab you choose above 100% — up to 600% — without touching the rest of your computer. Boost several tabs at once, turn off just one, and shape each with a bass booster and equalizer.
Free
No trials, no credit card, no account. The sound booster, AI mastering, the studio and every audio tool are free for everyone.
Making music every week? SoundBooster Pro is coming soon.
Questions
Everything people ask before they turn it up.
Chrome has no setting above 100%. Add the free SoundBooster extension, open the quiet tab and choose a preset — 150%, 200%, 300%, 400% — or drag up to the 600% maximum.
Yes. The sound booster extension, AI mastering, the vocal remover, the studio and every audio tool are free, with no account. SoundBooster Pro — extras for musicians like studio-quality WAV masters and unlimited revisions — is coming soon.
No. Instead of clipping loud peaks, SoundBooster uses a look-ahead limiter that turns them down smoothly just before they play, so audio stays clean even at 600%.
Yes — it boosts any Chrome tab that plays sound and that Chrome lets extensions capture, including YouTube, web music players, Google Meet and Zoom's web client.
Yes. The extension includes a bass booster (up to +12 dB), treble control and a 5-band audio equalizer, all per tab. For files, there's a free online bass booster.
Yes. Every tab has its own volume and equalizer, and you can turn off one tab while the others stay boosted.
No. The extension processes tab audio on your computer and never records it. Browser tools decode files on your device too.
100% free. No credit card, no installer — just your browser.
Your audio stays yours. When a feature needs a server, the page says so first. Privacy
