Online habit tracker · Works offline · Free

Track habits.
Build a 3D skyline.

A gamified daily habit tracker that turns your streaks into an isometric 3D skyline. Every check-in adds a brick. Every consistent week raises a building. Offline, private, no account — your data lives in your browser.

Start building → See how it works

Free · Browser-only · Private by default

A habit tracker that shows up for you

Track daily habits

Add the habits that matter, check them off each day, and watch your streaks grow. No friction, no setup wizard.

Watch a skyline emerge

Each habit becomes a building. Each completed day adds a floor. Your year of consistency renders as an explorable 3D skyline.

GitHub-style heatmap

The classic contribution heatmap, but for your habits. Spot patterns, find gaps, and stay accountable to past you.

How it works

1
Add a habit

Reading, exercise, deep work, no soda — anything you want to do consistently. Color it, name it, done.
2
Mark it done each day

One click per habit per day. The heatmap and skyline update instantly. Skip a day? It's just a gap, not a failure.
3
Watch your skyline grow

Rotate, zoom, and pan around an isometric voxel skyline that reflects your actual year. Choose between four art styles.

A year of habits, made visible

Habit Skyline dashboard with habit list, 3D skyline visualization, and stats sidebar — The dashboard — habits on the left, your city in the middle, streak stats on the right.

Pick a mood. The same year of habits, four different skies.

Cozy art style — warm cream sky and a pastel hand-drawn city — Cozy

Sunset art style — orange and pink gradient sky over a glowing city — Sunset

Pixel art style — deep night sky with a moon over the city — Pixel

Blueprint art style — dark navy night sky and a precise grid-like city — Blueprint

GitHub-style heatmap showing daily habit completions across a year — The familiar contribution heatmap, applied to habits.

Frequently asked

Is Habit Skyline free?

Yes. Free to use, no ads, no subscription, no premium tier.

Do I need an account?

No account is required. Open the app and start tracking habits immediately.

Do I need to download an app?

No. Habit Skyline is an online habit tracker that runs entirely in your browser — nothing to install, no app store. Open the page and start tracking.

Where is my data stored?

All habit data lives in your browser via IndexedDB. Nothing is uploaded to a server. Clearing your browser data clears your habits — so use Export to back up.

Can I export my habits?

Yes. The app includes Export and Import buttons so you can back up your data or move it between browsers.

Does it work on mobile?

Yes. Habit Skyline works on phones, tablets, and desktops. The layout adapts to your screen size.

Build your first brick today.

Start building →

Track habits.Build a 3D skyline.