Yes it is completely free to use.
Once the page is fully loaded, the core timer logic remains in your browser's cache, allowing it to function even if your internet connection drops.
Yes, our timer is designed to run in the background. As long as the browser window remains open, the countdown will continue and the alarm will sound.
Yes, click the "Full Screen" icon to expand the timer, making it easy for students at the back of the classroom to see the remaining time.