Pomotimer
Distraction-free Pomodoro timer that lives in your browser. Customizable work/break intervals, offline-capable, installs as a PWA. No sign-up, no upsells. The timer keeps counting in a background tab, so switching windows does not silently reset the session.

Pomotimer, as it opens in a browser tab.
Not sure how to add Pomotimer to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.
Own Pomotimer? Have us re-run this measurement — we open it in a real browser, cut the network, and send you what survived.
How to install Pomotimer as a PWA
Screenshots
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