Noisekun

Web app for mixing ambient sound combinations to relax, sleep, or stay productive.

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Noisekun is a free, open-source web app for mixing combinations of 23 ambient sounds — rain, waves, cafe chatter, colored noise, and more — with individually adjustable volumes to relax, sleep, or stay productive. Combos and their matching visual theme can be saved and shared, and a built-in Pomodoro timer supports focused work sessions. It's aimed at people who want to build and save their own custom ambient soundscape rather than picking from fixed playlists.

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