Noiseloop

Noiseloop is a free ambient sound mixer built for focus, studying, and deep work.

Open the app and start layering sounds immediately – no account, no setup, no ads. Mix rain, white noise, brown noise, nature sounds, and more. Adjust the volume of each sound independently to build your perfect listening environment.

Four curated preset modes – Noise Blocker, Deep Work, Relax, and Light Work – each include multiple sound combinations ready to use. Switch between presets instantly with no gap in audio, or cycle through variants within each mode.

The built-in Pomodoro-style session timer (25, 45, 60, or 90 minutes) helps you stay accountable. A gentle three-note chime signals the end of each session. The countdown is also visible directly in your browser tab so you never need to switch back.

Noiseloop is built for serious background use: audio keeps playing reliably while you work in another tab or window, and the engine recovers automatically from browser interruptions.