Free tools

No sign-up. Everything runs in your browser and nothing is sent anywhere.

• Fasting schedule calculator

  Pick 16:8, 18:6, 20:4, OMAD or your own hours, add your wake-up and sleep times, and see your eating and fasting windows on a 24-hour ring. Print it if you like.

• When can I eat? Fasting timer

  Enter when your last meal ended and your plan to see how long until your eating window opens, your progress, and the general stages people talk about.