Small tools for building a practice.
Free, no account, no upload. Each one runs entirely in your browser, which is the same promise the app makes about your habit data.
- Habit formation calculatorHow many days your habit is likely to need, from the research rather than the myth
- Habit heatmap generatorTurn a year of days into a grid you can download and share
- Streak and consistency calculatorYour streak, your completion rate, and a score that dips after a miss instead of resetting
- Habit stack builderChain a new ritual onto something you already do, then print the plan
- Quit habit calculatorDays clear, and what you kept instead of spent
- Printable habit trackerA month on one page, typeset for paper and ready to print
What they have in common
Each one answers a single question and then gets out of the way. Nothing asks for an email before it works, nothing uploads what you type, and nothing shows you an advert. Where a tool needs to remember something, it keeps it in your own browser.
They also share a point of view, because they were built by people who make a habit tracker: a missed day is not a failure, a streak is a poor measure of a year, and a number you cannot check is not worth believing. The tools show their working.