A lightweight, privacy-focused Intermittent Fasting & Water Tracker web app. Zero dependencies, single-file, fully installable as a PWA, and works completely offline.

✨ Features

  • 🕒 Smart Fasting Timer – Count Up or Count Down with real-time progress & hour markers
  • 📊 Preset Protocols – 12:12, 14:10, 16:8, 18:6, 20:4, 23:1 (OMAD) + fully customizable FLEX hours
  • 💧 Water Intake Tracker – Set daily targets, quick-add buttons, auto-resets at midnight
  • 📜 Collapsible History & Stats – Editable notes, weekly analytics (total fasts, avg duration, completion rate), and CSV export
  • 🔔 Dual Notifications – In-app toasts (work without browser permissions) + optional native system alerts
  • 🔊 Audio & Haptic Feedback – Milestone chimes & mobile vibration
  • 🌙 Dark/Light Mode – System-aware with manual toggle & persistent preference
  • 📲 Fully Installable PWA – Add to home screen, works offline, background service worker
  • 🔒 100% Private – All data stored locally. No accounts, no tracking, no external servers
GitHub