Small tools for the practical side of a birthday. Each one runs in your browser, needs no account, and stores nothing about you beyond the seven days a card is live.
A 3D cake they blow out with the phone microphone, then your photo, message and their age. Or a designed card for an anniversary, a thank-you or an apology, which can ask a question first. Sent as a link, gone after seven days.
Make a cardA live countdown to any birthday, in their timezone, shared as a link. The whole countdown lives in the URL, so nothing is stored anywhere.
Start a countdownExact age in years, months and days, days until the next birthday, the weekday they were born on, and the number of candles the cake needs.
Calculate an ageThe date someone turns 10,000 days, 1,000 weeks or a billion seconds old, with every milestone from a million minutes to 30,000 days in one table.
Find a milestoneThe date six months after a birthday, its weekday and how far away it is, and the age they turn, like 7½. Explains 31 August, 29 February and the 182-day count.
Find a half birthdayThe age gap between two people in years, months and days, the day one was twice the other’s age, and the part of each year when they are a year further apart.
Compare two agesUse the age calculator to get the age right, the countdown to build up to the day with the family, and the card for the moment itself, whether that is a birthday, an anniversary or a thank-you. If the message is the hard part, the templates and guides cover what to write.
The other calculators find a reason to celebrate on a day that isn't the birthday: the 10,000th day and other milestones, the half birthday, and, with the age difference calculator, the day one person was exactly twice the other's age.