Your habits, your device, your data.

Sulcata is a free habit tracker that runs entirely in your browser. Nothing is uploaded. No accounts. No servers. Your data never leaves your device.

Start tracking

Private by design

All data is stored locally using your browser's built-in storage. There are no analytics, no tracking pixels, and no third-party scripts. We can't see your data even if we wanted to.

Free, no strings

No subscription, no premium tier, no ads. Sulcata is free to use and always will be.

Track anything

Sleep, mood, exercise, medication, food, water — create custom metrics for whatever matters to you. See trends, correlations, and streaks over time.

Install as an app

Sulcata works best when installed. It launches instantly, works offline, and feels like a native app.

Safari (iOS): Tap the share button, then "Add to Home Screen"
Safari (Mac): File menu, then "Add to Dock"
Firefox: Look for the install icon in the address bar, or use the menu and "Install this site as an app"
Chrome / Edge / Brave: Click the install icon in the address bar