Free tools
Free habit and sleep tools
These are free, self-contained tools that run entirely in your browser. There is no account, no email step, and nothing you type is uploaded or stored on a server. They exist because the questions they answer (how regular is my sleep, what does 1% better actually add up to, what did my year look like) are the same questions Habit Pocket was built to answer from data you log every day.
Runs in your browser · Nothing uploaded · No account, no email
Sleep Regularity Index
Turn a week of bed and wake times into your SRI score, the published measure of night-to-night sleep consistency.
Open the tool1% better calculator
Compare the famous 37.8× compounding curve with a realistic one that accounts for missed days, plateaus, and decay.
Open the toolYear in pixels
Color one pixel a day for the whole year, see the pattern appear, and export it as a PNG.
Open the tool
How these work
Free, and free of the usual catch.
No account, no email
Nothing is gated. There is no "enter your email to see your result" step, because a tool you have to pay for with your inbox is not free.
Nothing leaves your device
Every calculation runs in your browser. Where a tool remembers your work it uses this browser’s local storage, which never reaches a server.
The math is on the page
Each tool shows its formula, names its sources, and says plainly where a number stops meaning much. No score is invented to make a point.
The tools answer once. The app answers every week.
Each of these works from numbers you type in by hand. Habit Pocket logs those same numbers as you go, on iPhone and the web, and keeps the chart up to date without you rebuilding it.
5 habits free, forever. No credit card. Your data stays private.
Last updated August 2026 · I build and maintain these tools myself, in the open, alongside the app · By Bohdan Stefaniuk