Really nice work! After trying many different ones, I created my own. I use it for HIIT and Pomodoro: https://tools.adrium.dev/timer.html https://tools.adrium

Really nice work! After trying many different ones, I created my own. I use it for HIIT and Pomodoro: https://tools.adrium.dev/timer.html https://tools.adrium.dev/timer.html Features: Landscape/portrait layouts, configurable intervals, sound, color, circular progress bar, simple UI, spacebar to start/pause. It is pure HTML5, one file, and thereby open source.