Why Use This Online Alarm Clock?
People reach for this tool for an alarm on a computer without a clock app, timing a nap or a batch of dough rising, and reminding you to join a call or check the oven. It loads instantly, works on phones, tablets, and computers, and needs no account or installation.
Everything runs locally in your browser — there is no server to trust with your data and nothing to configure. Open the page and the tool is ready.
Setting an Alarm
Choose the time you want the alarm to ring and press Set. The page counts down to that clock time and then plays a repeating beep until you stop it.
Keep this tab open for the alarm to fire — browsers silence background audio in some cases, so leave the tab in the foreground where possible.