Online Timer
ONLINE TIMER
05:00
Set duration
Shortcuts: Space start / pause · R reset
About this online timer
This timer runs entirely in your browser — no install, no signup. Use it for cooking, workouts, study blocks, exams, or any countdown you need. It plays a sound when time's up, and keeps your screen on while it runs so it doesn't stop early.
It fits all kinds of everyday moments: a 3-minute egg timer, a 20-minute workout interval, a 45-minute focus block, a classroom quiz, or a quick rest between gym sets. Unlike a phone's built-in timer, you can see exactly what's left at a glance — the tab title updates with the countdown in real time.
Under the hood, the timer works out the exact moment it should end and keeps checking the time remaining against that target.
One thing worth knowing: on some phones, especially iPhones, the end-of-timer sound may be delayed if you switch to another app while the timer is running. For anything where you really need to hear the alert — like a stovetop or a lab timer — keep the tab open and in view, or set a phone alarm as backup.
People use this timer in all kinds of ways: a baker timing dough, a trainer running sprint intervals, a teacher managing classroom transitions, someone timing a short meditation. All they need is a clear countdown and a sound at the end. This timer works on any device with a browser, needs no setup, and keeps every value private to your own tab — whether you need 5 minutes or several hours, you get the same reliable experience.
Most online timers look similar on the surface — numbers counting down, a Start button. What actually matters is what happens once the tab is in the background or the screen dims. This timer keeps checking the real clock the whole time, so it stays accurate no matter how long it runs: start a 5-minute timer, and it ends exactly 5 minutes later, tab open or not.
How this online timer works ?
This online timer runs for exactly as long as you set it — even if you switch tabs, minimize the browser, or let your screen dim. That's because it checks the real clock against a fixed end time instead of counting down step by step, so it can't quietly drift slow the way a simple countdown sometimes does. While it's running, it also keeps your screen from sleeping. One thing to know: the end-of-timer sound plays through your browser, and some phones delay background audio, so keep the tab open and in view for anything you really can't miss. Need to count up instead of down? Try the stopwatch.
A short history of the kitchen timer ?
The wind-up kitchen timer — the twist-to-set dial with a bell — has been a kitchen staple since the late 1920s, prized for being simple enough to use without instructions. Electronic timers took over in the 1970s, trading the spring for a tiny quartz crystal that barely drifts at all. This timer is the newest link in that chain: no battery to replace, no spring to wind, just a tab you can open on whatever screen is nearby.
Why this timer doesn't drift ?
Some countdowns just subtract a second at a time. That only stays accurate if every tick fires exactly on schedule. Browsers don't always cooperate, especially once a tab sits in the background. This timer avoids that problem entirely. It fixes the end time the moment you press Start. From then on, it simply checks the real clock against that fixed time. The number on screen is always correct the instant you look at it — no matter how the tab was treated while you weren't watching.
Why interval workouts need an outside timer ?
Short work-and-rest intervals, like 20 seconds on and 10 seconds off, are hard to count accurately in your head. A few seconds off in either direction changes how hard the workout actually feels. An outside timer removes that guesswork. A simple countdown, reset between rounds, is really all interval training needs to stay precise and consistent.
Why cooking times matter down to the minute ?
A recipe that gives you a specific time isn't being fussy. Browning, searing, and safe cooking temperatures often depend on a fairly narrow window. A few extra minutes can be the difference between perfectly done and overcooked. A timer you can trust to run exactly as long as you set it makes that kind of precise cooking possible.
How a timer's chime becomes a habit cue ?
The sound at the end of a timer does more than mark time. With repeated use, it becomes a signal your brain learns to recognize, separate from whatever task you were doing. Pressing Start does something similar. It turns a vague intention like “I should focus on this” into a clear, time-bound commitment — which makes it a lot easier to actually begin.
How the browser timer compares
| This browser timer | Phone timer | Physical kitchen timer | |
|---|---|---|---|
| Install required? | No — opens in browser | Pre-installed | One-time purchase |
| Multiple timers at once | Yes, unlimited | Usually one, some apps allow more | One per unit — need several |
| Works with tab/app closed? | No — tab must stay open | Yes, runs in background | Yes, independent of any device |
| Custom label per timer | Yes | Limited | No |
| Works on any device, no install | Yes — any browser | No — native app only | No — physical object only |
| Cost | Free | Free (built-in) | One-time purchase |
Frequently asked questions
Will the timer keep running if I switch tabs?
Can I run multiple timers at once?
Does the timer work offline?
What keyboard shortcuts are supported?
Is the timer accurate?
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