DayCounter is a free, private collection of self-tracking tools: date calculators, quit-habit streak counters and reflective self-assessments.
Every tool runs entirely in your browser. There are no accounts, no servers storing your data, and nothing to download — your quit dates and streaks live in your device's own storage.
The site is built as static pages served from a global CDN, in 14 languages. Nothing here is medical advice; the self-tests are reflection tools, not diagnostics.