Timers that keep time when the tab doesn't have focus
A browser timer has one job, and many get it wrong: they count by adding up ticks, so they drift when the tab is in the background, the laptop sleeps or the phone locks. Every timer here works from the system clock instead, so a ten-minute countdown ends after ten minutes even if you switch tabs halfway through, and the alarm still sounds when it does.
The online timer runs several labelled countdowns side by side, which is handy for cooking, exams or a workshop schedule. The online stopwatch records laps and splits to the millisecond and lets you export them. If you work in focused blocks, the Pomodoro timer handles the 25/5 rhythm with a task list and daily stats, and for board games the chess clock supports increment and delay with big tap targets for a phone laid flat on the table.
There are also specialist timers: an egg timer that works out the right time for your egg size and how you like it, a speech timer with the green, amber and red lights used at Toastmasters, and a tally counter for counting people, laps or stitches. They all go full screen, work offline once loaded and keep your settings in your own browser — no account, no app, nothing uploaded.