OneThing strips your screen down to a single task and a calm, visual countdown, then surrounds it with the small supports that actually help you start and keep going. A time-blind ring timer, 20+ soundscapes generated live on your device (body double, rain, ocean, fireplace, brown noise, om drone and more) with a master volume, a brain-dump box, a tiny-steps breaker, a quick-win picker, water and meds reminders, a “what was I doing” context saver, an end-of-day shutdown checklist, optional haptics, and a one-tap link to FocusHosts for OS-level blocking. Runs fully in your browser, nothing uploaded, no signup.
A calm visual timer, 20+ live soundscapes, brain dump, tiny-steps, reminders and a shutdown checklist. Built for ADHD focus, good for everyone.
Download & run
Open it Click Launch OneThing below. It opens in your browser, works on phone or desktop, and remembers your setup on this device.
Set the one thing Type the single task, pick a length (5/10/25/50), press Start. The ring shrinks so time stays visible.
Layer your focus sound Tap any soundscapes to mix them, set the volume, and turn on haptics if you want gentle buzzes.
Use the supports Brain-dump, break it into tiny steps, grab a quick win when stuck, set water/meds reminders, and run the shutdown checklist at day end.
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Everything runs on your device and saves locally in this browser. Sound and notifications start after your first tap (browser rule). For system-wide site blocking, add the free FocusHosts tool.