SoundBooster started with a simple annoyance: videos, calls and songs that are too quiet even at full volume. Fixing that turned into a bigger idea — the browser you already use is powerful enough to make almost any sound noticeably better, without installing a studio.
A volume knob for every tab
The SoundBooster extension boosts any Chrome tab up to 600%, with a bass booster, a five-band equalizer and stereo width. Each tab has its own settings, so you can turn up a quiet lecture while music in another tab stays put. A look-ahead limiter keeps even the maximum clean instead of crackly.
Mastering you can talk to
AI Mastering lets you describe the sound you want — “punchier drums, clearer vocals” — and hear the result as a new revision. Six engineers bring different styles, every revision is loudness-matched for a fair comparison, and the processing runs on your own computer.
Everything else a musician reaches for
- A stem splitter and vocal remover.
- A multitrack studio with tempo, key and chord detection.
- Music videos, Spotify Canvas loops and visualizers.
- 25+ free tools: LUFS meter, loudness penalty, speaker simulation, converters, a tag editor, noise removal and more.
Free, and private by default
Everything is free. If a job can run on your device, it does — your audio doesn't travel unless a feature genuinely needs a server, and the page says so first. We'd love to hear what you make, and what you'd like us to build next: get in touch.