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Habit Tracker
Backup

JSON is the full backup. CSV has one row per habit per day done (habit, date, weekdays only). Habits with no days yet keep a row with an empty date. Your data lives in this browser only: clearing site data or switching device loses it, so export a file to keep a copy.

More info

How to use the habit tracker

  1. Add a habit, such as “read 10 pages”. Tick Weekdays only if Saturday and Sunday shouldn’t count.
  2. Press Mark done today. Missed yesterday? Tap its square in the 7-day strip to fix it.
  3. Current is the number of days in a row up to today. If today isn’t ticked yet, yesterday still keeps it alive. Best is your longest run ever.
  4. The 12-week grid shows each day as a square, oldest on the left, with the current week on the right.

Questions

Which day is “today”? The day on your device’s clock, in your own time zone. A new day starts at midnight where you are.

Where is my history saved? In this browser only. Clearing site data, or using another device, starts empty. Export JSON is the full backup; Import loads it again, either replacing what’s here or adding to it.

What does CSV hold? One row per habit per day done, with the habit name, the date and whether it’s weekdays only. Opens in any spreadsheet.

Does anything leave my device? No. There are no accounts and no uploads.