Superfocus
A study timer or focus timer online is only free in the useful sense if you will run it daily. Chrome novelties and tomato widgets fail when sound and tasks live somewhere else.
Use it well
Name the work. Pick a preset. Keep audio in-app. Honor breaks. Count finished blocks. That is the whole skill.
Superfocus
The marketing site is free to read. The timer app at /app is Premium ($1.99/month) after you Subscribe. Guests are not dropped into a half-broken guest clock — that was a product decision so “free timer” pages do not lie about an unlimited anonymous tool.
If you need a truly zero-account tomato, use any open pomodoro timer. If you want the workflow, Superfocus is the study timer with the rest of the desk included.