# Habit Heatmap > Track habits with a GitHub-style contribution heatmap. See your consistency at a glance, toggle intensity levels, and never break the chain. The Habit Heatmap tracks your habits on a GitHub-style contribution calendar, so a full year of consistency is visible at a glance. Multiple intensity levels, multi-habit support, and PNG export make it a motivating, shareable way to never break the chain. - **Live tool:** https://www.toolnova.org/productivity/habit-heatmap - **Category:** Productivity Tools (https://www.toolnova.org/productivity) - **Price:** Free - **Requirements:** Runs in a modern web browser · No signup · No install ## What this tool does - 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 ## How to use Habit Heatmap 1. **Create a habit** — Add a habit to track across the year. 2. **Log each day** — Click a day to mark it, cycling through intensity levels. 3. **Watch the year fill** — See your consistency build across the contribution calendar. 4. **Export as PNG** — Save the heatmap as an image to share or keep. ## Common use cases - A writer tracks daily writing like a GitHub streak. - A gym-goer visualizes a year of workouts. - A learner logs study intensity day by day. - Someone shares a motivating heatmap of a finished challenge. ## About ### The year-at-a-glance view A contribution-style calendar compresses a whole year into one grid, so progress and gaps are instantly visible. That big-picture view is powerfully motivating — a growing field of filled squares makes you want to keep it going. ### Intensity, not just yes or no Habits aren't always all-or-nothing. Multiple intensity levels let you record a light day versus an all-in one, giving a richer picture than a simple checkbox and reflecting the real texture of your effort. ### Share your streak Exporting the heatmap as a PNG turns your consistency into something you can post or save as a milestone. Making progress visible and shareable adds a layer of accountability that private tracking lacks. ## 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. --- ToolNova — free, privacy-first browser tools. Most tools process data locally on your device. See https://www.toolnova.org/llms.txt for the full directory.