No sign-up, no app to install, no timer that cuts you off. Just press play and get a deep, steady wall of sound that makes it easier to stay in one thought for longer.
▶ Play brown noise nowBrown noise sits lower and rounder than white noise — less hiss, more depth. It works by masking the small, unpredictable sounds around you (a door, a notification, someone talking two rooms over) with something constant your brain can tune out. That's often what actually breaks focus while studying: not silence being interrupted, but unpredictability being interrupted.
This player builds its sound from real brown-noise synthesis layered with soft rain and a whisper of deep space — the same mix built into the "Deep Work" preset in the full app, which also includes a Pomodoro-style timer (25/5, 50/10, or 90/20) if you want to structure your study session around it.