Does the intermittent fasting tracker work offline?

Yes, after one successful online load. The page caches its core files, while settings, the active timer and history stay in local browser storage.

Where is my fasting history saved?

Your fasting sessions are saved in local browser storage on this device. They are not synced to an account, and clearing browser data can remove them.

Which intermittent fasting plan should I choose?

The tool offers common schedules for convenience, but it does not recommend a plan. Fasting may not be appropriate for everyone, so seek qualified medical advice based on your health, medications and circumstances.

Is this fasting timer free?

Yes. The fasting window timer is free to use, requires no sign-up and saves your tracking data locally.

Your rhythm, clearly timed

Intermittent fasting, without the guesswork.

Q: How do I use this fasting window timer online?

Choose a fasting plan, adjust the start time if needed and select Start fasting. The live timer shows elapsed time, time remaining and your estimated eating-window start.

Start a fasting window, see exactly where you are, and build a simple history over time. No sign-up—your tracker stays on this device.

Free online timerOffline trackingSaved locally

Ready for your next window

Your plan 16:00:00 fasting goal

Choose a plan and start when your fasting window begins.

Started—

Goal—

Your week at a glance

A little consistency becomes a visible rhythm.

Completed and partial fasting sessions are recorded only in this browser.

No sessions yet

Recent fasting windows

0 saved

Your first window starts here.

Finish a fast and it will appear in your private history.

How to use the fasting timer online

Set your plan in three simple steps

This tracker is deliberately lightweight: pick a window, start the clock and let your browser remember the rest.

Choose a schedule

Select 16:8, 18:6, 20:4, 14:10 or enter a custom fasting duration.

Start or backdate

Begin now or set the actual time your last meal ended for an accurate countdown.

Finish and reflect

End your fast when you are ready. Your duration and goal result join the local history.

A tracker, not medical advice. Intermittent fasting is not suitable for everyone, including some people who are pregnant or breastfeeding, under 18, have a history of disordered eating, take certain medicines, or manage some health conditions. Ask a qualified healthcare professional what is appropriate for you. Stop if you feel unwell.

Fasting tracker FAQ

Helpful answers before you start

How do I use this fasting window timer online?

Choose a preset or custom number of fasting hours, set the time your fast began and press Start fasting. The timer shows your progress, remaining time and estimated goal time. When you finish, press End fast twice to save the session.

Does this intermittent fasting tracker work offline?

Yes, after one successful online visit in a browser that supports service workers. The page caches its core files for later offline visits, while timer calculations and saved history run entirely on your device.

Where is my fasting history stored?

Your plan, active timer and session history are stored in localStorage on this device. Nothing is synced to an account. Clearing site data or using a different browser can remove or hide that history.

What happens if I close the page during a fast?

Your start and goal times are saved locally. When you return in the same browser, the tracker calculates the correct elapsed time from those timestamps and continues your window.

Does the timer recommend a fasting schedule?

No. The presets are common schedules offered for convenient tracking, not recommendations. Your health needs are personal, and a qualified professional can help you decide whether fasting is appropriate.

Is this fasting timer online and free?

Yes. It is a free web-based timer with no registration. Your tracking data stays in your browser unless you choose to clear it.

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