Alarm Clock
Set a specific time of day and this tab will sound an alarm the moment your clock hits it — a quick browser-based alarm with no app install.
An alarm clock is one of the oldest pieces of "productivity technology" in existence — mechanical wake-up devices date back centuries, long before anyone used that word — because the underlying problem it solves has never changed: humans are bad at waking up on their own at a specific time, and the consequences of failing to do so are usually worse than the mild annoyance of a loud noise. Everything else about alarm clocks, from the physical bell versions to the smartphone apps, is really just iteration on that same basic promise.
A browser-based alarm clock trades the reliability of a dedicated physical device (which keeps running even if your phone dies) for convenience — it's already open on the same screen you're working on, with no separate app to install or account to create. That tradeoff makes the most sense for daytime use: a reminder to leave for a meeting, a nap alarm, or a "don't forget" alert while you're already at your computer, rather than as a replacement for the alarm that wakes you up in the morning, since that one needs to work even with your laptop closed.
Set an hour and minute, and this tool checks the time every second while the tab stays open, sounding a distinct alarm tone — different from the gentler "done" sound used by the timers elsewhere on this site — the moment it matches. That distinction is intentional: an alarm should sound more urgent than a cooking timer, because the stakes of missing it usually are.
- Pick the time you want the alarm to go off.
- Press "Set alarm."
- Keep the tab open — the alarm checks the time every second.
- Press Clear to cancel it.
Yes, the alarm only fires while the tab is open and active in your browser.
This tool supports one alarm at a time; for several alerts, try the Multi-Timer instead.
The alarm won't fire while your computer is asleep — keep the device awake if timing matters.