Baby tracker: feeding, sleep and diaper log

The tracker is built for tired hands at 3 AM: big buttons, no menus.

• Breastfeeding: tap Breast – left or Breast – right to start a timer, and Done to stop it. Starting the other side automatically ends the first, and the tracker shows which side you used last.
• Bottle: enter the amount in ounces, choose breast milk or formula, and tap + Bottle.
• Solids: one tap logs the time of a solid-food meal.
• Sleep: tap Fell asleep and later Woke up. Between naps it shows how long your baby has been awake.
• Diapers: tap wet, dirty or wet + dirty.

Forgot to log something? Open Add a past entry, pick the type, the start time and, for feeds and sleep, the length in minutes. Any entry can be deleted from the day's list.

For each day the tracker adds up the number of feeds, the total bottle amount, minutes at the breast, total sleep, and wet and dirty diapers. Use the arrows to step back through previous days. Next to the date, Since last feed tells you how long it's been.

Say your log for Tuesday looks like this:

What you logged	Count	Total
Breastfeeds	6	95 min at the breast
Bottles (formula)	2	4 oz + 3.5 oz = 7.5 oz
Sleep	7 stretches	15 h 10 min
Diapers	7 wet, 3 dirty

The summary would show 8 feeds, 7.5 oz and 95 minutes at the breast, 15 h 10 min of sleep, 7 wet and 3 dirty diapers. A wet + dirty diaper counts once in each column. Sleep that runs past midnight is split, so each day only gets the part that fell on it.

On this site you enter bottle amounts in fluid ounces, the way US bottles and formula instructions are marked. You can type decimals such as 2.5. Behind the scenes amounts are stored in milliliters, and the downloaded CSV lists them in ml, which is handy if you share it with a clinic that uses metric.

Ounces	Milliliters (approx.)
1 oz	30 ml
2 oz	59 ml
3 oz	89 ml
4 oz	118 ml
6 oz	177 ml
8 oz	237 ml

How much and how often babies eat varies a lot from baby to baby and day to day, so the tracker doesn't judge your numbers. It simply records them so you and your pediatrician can see the pattern.

The log is stored only in this browser on this device, in local storage. Nothing is sent to a server, and there's no account. That also means two parents on two phones each have a separate log, and clearing your browsing data or using a private window will lose it. Download a CSV now and then: it lists every entry with type, start, end, minutes, amount, side, milk type and diaper type, and opens in any spreadsheet app.

A few days of logs are useful at well-baby visits, especially in the first weeks or when your pediatrician asks about feeding, sleep or diapers.

Call your pediatrician if your baby has fewer wet diapers than usual, is very sleepy or hard to wake for feeds, is feeding poorly, has a fever, or if you're simply worried they aren't eating enough. For breathing trouble or a baby you can't wake, call 911.

Newborn sleep varies a lot; the NHS notes total daily sleep can be around 18 hours in the newest babies. Whenever your baby sleeps, follow the AAP's safe sleep advice: on the back for every nap and at night, on a firm, flat surface with only a fitted sheet, and in your room but never in your bed.

Once a rhythm starts to appear, the baby sleep schedule can suggest a sample day. Track growth with the baby growth percentile calculator and development with the milestones checklist.

This tracker is informational and isn't a substitute for medical advice.