WeightNotes stores everything in your browser's local storage. Your weight, calories, notes, and settings never leave your device. There are no accounts, no cloud sync, no analytics, no tracking pixels, and no cookies sent to any server. We literally can't see your data — it doesn't exist anywhere except on your machine.

Track your daily calories across five categories (breakfast, lunch, dinner, snacks, and exercise) and log your weight over time. The app gives you friendly visual feedback on your progress — nothing harsh, just honest. Your data persists between visits thanks to local storage, and you can export a full backup anytime as a JSON file.

WeightNotes is open source software built by Jenkwerx. The entire app is a single HTML file — no frameworks, no build tools, no dependencies beyond two Google Fonts. You can view, modify, and host it yourself. That's the point.

Export your data anytime from the menu. Import it on another device or browser. Clear everything with one tap. There's no account to delete because there's no account to begin with. If you stop using WeightNotes, your data stays in your browser until you clear it — or it just quietly disappears when you clear your browser data. No ghosts, no remnants, no dark patterns.