Multi-Channel Timer
Run several independent count-up / count-down timers side by side, each with its own start / pause / reset, plus a beep + flash when a countdown hits zero — 100% in your browser.
Total: 0
Running: 0
Nearest countdown: —
Pick a mode (count down or count up), set hours / minutes / seconds (ignored for count-up), and click Add timer. Each card has its own Start / Pause / Reset. When a countdown reaches zero a short beep is played via the Web Audio API, the card flashes red, and a toast appears. The browser tab title shows the nearest running countdown while any timer is active. All timing is local; nothing is uploaded.