Habit Heatmap

Track habits with a GitHub-style contribution heatmap. See your consistency at a glance, toggle intensity levels, and never break the chain.

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Technical Audit

This productivity tool helps you optimize your workflow, time management, and focus sessions. It runs entirely in your browser with local storage for persistent tracking — your work patterns, habit data, and schedules remain private on your device.

GitHub-style contribution calendar heatmap
Multi-level intensity tracking (0-3 clicks)
Support for multiple simultaneous habits
Year navigation with month labels
Consistency rate and active days statistics
Export heatmap as PNG image

System FAQ

What is a GitHub-style contribution heatmap?

It's a calendar visualization where each day is a small colored square. Days with activity are filled with varying color intensity based on effort level. Popularized by GitHub's contribution graph, this format gives an instant 'year at a glance' view of your consistency.

How do the intensity levels work?

Click a day square once for light intensity, twice for medium, three times for strong, and once more to clear. This lets you track not just whether you did a habit, but how well — e.g., 10 minutes of meditation vs 30 minutes.

Can I track multiple habits?

Yes. Add unlimited habits using the input field. Switch between habits using the badges at the top — each habit has its own independent heatmap and statistics.

Can I export my heatmap?

Yes. Click 'Export PNG' to download your current habit's heatmap as a high-resolution PNG image. Use it to share on social media, print, or include in habit accountability groups.

Will my data persist between sessions?

Yes. All habit data is saved to your browser's local storage and persists between sessions. It stays on your device — nothing is sent to any server.

What's the difference between this and the Habit Tracker?

The Habit Tracker focuses on weekly streaks with a 7-day view and gamification (XP, shields, levels). The Habit Heatmap provides a long-term 'year at a glance' visual, making it ideal for seeing patterns over months and years. Use both together — the tracker for daily check-ins and the heatmap for retrospective analysis.