Tools people built with one sentence
Timers, converters, checklists, a counter for one oddly specific job. Made by the people who had the job. Borrow an idea, or describe a better one.
Pomodoro
A focus timer with adjustable focus and break lengths, plus notifications when each stretch ends.
ToolScientific Calculator
Evaluate advanced maths and science expressions with trigonometry, logarithms, powers, roots and factorials, and keep every result in a his…
ToolInterval Timer
Workout interval timer: set work, rest and rounds, tap start. A big number counts down — green for work, blue for rest, beep at each switch…
ToolCoin
Flip a coin: heads or tails, with a running tally and a history of your flips.
ToolDice Roller
Roll any combination of dice from d4 to d100 and see your recent rolls.
ToolContrast Checker
Check the WCAG contrast ratio between a text color and a background color, see whether it passes AA and AAA, and get a nearby color that pa…
ToolWeather
Search any city, see current conditions, hourly and 14-day forecasts, and star favorites for one-tap checks.
ToolBaby Percentiles
Estimate a baby's weight, length and head circumference percentiles from age and sex using WHO growth reference values.
ToolMetronome & Practice Timer
A metronome with tap tempo, +/− tempo controls, an accented beat flash, 3/4/6 time signatures, and a practice timer that logs your daily mi…
ToolMeal Planner
Plan breakfast, lunch, and dinner one day at a time. Flip through the week with arrows, tap any slot to fill it in, and get a nudge when a…
ToolRecipe Box
Save recipes with ingredients and steps, search them by name, rescale servings instantly, and check off steps as you cook.
ToolWhich Is Cheaper
Compare two products side by side. Enter a price and quantity for each to see the price per unit, with the better deal highlighted, and rev…
ToolCurrency Converter
Convert between currencies instantly. Type an amount in either box and the other updates immediately, with rates saved for offline use.
ToolDecision Spinner
Spin a colorful wheel to randomly pick from your own list of options. Save named lists like Restaurants or Chores to reuse anytime.
ToolToday's List
A simple list for your day: add tasks, check them off as you go, and get one gentle evening reminder about anything still left. Everything…
ToolTip Calculator
Fast tip math with 15%, 18%, and 20% buttons, plus bill split for any number of people. Tip, total, and per-person amounts update as you ty…
ToolCalculator
A clean, reliable calculator: digits build one number at a time, then add, subtract, multiply or divide as you tap.
ToolPacking List
Create packing checklists for trips and reuse them as templates for future trips.
ToolUnit Converter
Convert miles, kilometers, pounds, kilograms, Fahrenheit, Celsius and more, live as you type.
ToolPokédex
A Pokédex styled like the classic device: pixel-art sprites and full entries for all 151 original Pokémon.
ToolCooking Converter
Convert cooking measurements between volume, weight, and temperature units.
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