FastWisely

Fasting Timer

Start a fast, watch your progress and keep a private history.

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History (saved on this device)

No fasts recorded yet.

Getting the most from a fasting timer

A timer sounds simple, but it solves one of the most common problems people run into when they start intermittent fasting: losing track of time. Was the last snack at 8 pm or 9 pm? How many hours are left? The FastWisely timer answers those questions at a glance so you can focus on your day instead of the clock.

How the timer works

Pick a goal that matches your method, from a gentle 12-hour fast to a 20-hour fast, and press Start fasting right after your last meal. The ring fills as you move toward your goal and the counter shows the elapsed time. When you are ready to eat, press End fast and the session is saved to your history with its length and goal. Because the start time is stored in your browser, you can close the page or restart your phone without losing your place.

Why tracking helps

Looking back over a week or two of fasts shows patterns you might miss day to day. Perhaps weekday fasts are easy but Saturdays slip, or you consistently stop an hour short in the mornings. Those insights let you adjust the plan to suit you — maybe a 14-hour goal on weekends, or a later first meal on workdays. Tracking is about learning, not judging yourself.

Tips for a smoother fast

Privacy by design

Your fasting history never leaves your device. We don't need an account, and we don't collect your fasting data. That makes the tool fast and private, but it also means the history won't sync between your phone and computer. If you want to keep a long-term record, jot the totals into a notebook or spreadsheet now and then.

A note on safety

Longer fasts are not automatically better. If you have a medical condition, take medication, are pregnant or nursing, or have a history of disordered eating, talk to a qualified professional before using any fasting schedule.

FAQ

Where is my history stored?

Only in your browser's local storage on this device. Nothing is sent to our servers, and clearing your browser data will remove it.

What if I close the tab?

The start time is saved, so when you come back the timer picks up where it left off.

What counts as a successful fast?

Any fast you complete safely. The history highlights fasts that reached your goal, but shorter ones still build the habit.

Should I fast every day?

Not necessarily. Some people fast five days a week and eat normally on weekends. Choose a rhythm that fits your life and health.