# Private Habit Heatmap Tracker Your habits stay in this browser. No account, no AI, no automatic upload. > Canonical page: https://elysiatools.com/en/tools/private-habit-heatmap-tracker - **Category:** Utilities - **Keywords:** Private Habit Heatmap Tracker, Year heatmap, Today ## Overview A little space for the things you want to keep doing. Opens a separate page without site analytics, ads or login scripts. Records are never sent through the tool API. The first page load needs a connection; offline reopening is not guaranteed. Rest days are not missed days. Daily/weekday streaks count planned days; unfinished today stays pending. Weekly targets count Monday–Sunday weeks and streaks in weeks; the current week and partial first/final weeks count only when the goal is reached. Closed full weeks count in the rate. End/archive dates are inclusive. Extra check-ins stay visible but do not inflate the scheduled rate. Local storage is not encrypted. Clearing site data or changing browsers/devices can lose your records. Keep a JSON backup. Other same-origin scripts, browser extensions or people using this browser may access it. ## When to use - Starting a new routine and wanting a year-long visual progress map without registering an account. - Logging sensitive or personal habits on a trusted device without sending records through an external API. - Evaluating daily habit streaks where incomplete current days do not immediately penalize your completion score. ## How it works - Launch the tracker to open the standalone habit workspace in your browser. - Add a habit, defining its start date to initialize the tracking timeline. - Check off completed habits for the day to update the year heatmap. - Review your completion rate, noting that today's date enters the completion calculation only after check-in. ## Use cases - Yearly habit visualization: Map daily routines across a full calendar grid to monitor long-term consistency trends. - Private routine logging: Keep personal health, reading, or study logs restricted entirely to local browser storage. - Offline-conscious milestone tracking: Maintain steady completion metrics where current-day pending tasks do not skew overall success rates. ## Frequently asked questions ### Are my habit logs sent to an external server? No. Records are stored locally in your browser and are never sent through a tool API. ### How does today's incomplete status affect my completion rate? An unfinished today is not counted as missed; today only enters the completion-rate denominator after you check in. ### Can I access my habits on another computer or phone? There is no automatic sync. Export a JSON backup from the original browser and restore it manually on the other device or browser; restoring replaces its current notebook after confirmation. ### Does the tracker work completely offline? The initial page load requires an active internet connection; reopening while offline is not guaranteed. ### How can I prevent losing my habit data? Keep a regular JSON backup. Clearing site storage removes these records; clearing only cached images and files is a separate action. ### Are local habit records encrypted? No. Same-origin scripts, browser extensions or people using the same browser profile may read them. 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