Daily Habit Tracker
Track daily habits with streaks and a GitHub-style heatmap.
How it works
- 1
Add a habit
Type a habit name, optionally pick an emoji, and click Add.
- 2
Check off daily
Toggle the checkbox for each habit you completed today.
- 3
Watch streaks grow
See your current and longest streaks update in real time.
- 4
Review the heatmap
Expand a habit to see your 12-week consistency heatmap.
Common use cases
Track exercise
Add habit "Exercise" with 🏃 emoji
View streaks
7 consecutive days checked
About This Tool
The Daily Habit Tracker is a free, privacy-focused tool designed to help you build and maintain positive routines through consistent daily tracking. Whether you are trying to exercise more, read every day, drink enough water, meditate, or practice a new skill, this tracker gives you the visual feedback and motivational cues needed to turn aspirations into lasting habits.
The core mechanic is simple: add the habits you want to track, then check them off each day as you complete them. Each habit displays your current streak — the number of consecutive days you have completed it — and your all-time longest streak. Streaks are a powerful psychological motivator; research in behavioral psychology shows that maintaining a visible streak dramatically increases the likelihood of continuing the behavior. The tracker leverages this principle by making your streaks prominently visible, encouraging you to keep the chain going.
Beyond streaks, each habit includes a GitHub-style contribution heatmap that shows your completion history over the last 12 weeks (84 days). Darker green cells indicate days where you completed the habit, while gray cells represent missed days. This visual consistency graph gives you an immediate sense of how reliable your habits are over time. Expanding any habit row reveals its full heatmap, making it easy to spot patterns such as weekdays where you tend to skip or weekends where you perform particularly well.
The tracker supports customization through emoji icons and custom names. When you create a habit, you can assign an emoji that represents it visually — a book for reading, a dumbbell for exercise, a water drop for hydration, and so on. This small detail makes the habit list more scannable and engaging, especially as the number of tracked habits grows.
Data management is handled entirely within your browser. All habit data, including completion history and settings, is stored in localStorage. An export function lets you download your data as a JSON file for safekeeping or migration to another device. If you ever need to start fresh, individual habits can be deleted (along with their history), or you can clear all data at once through your browser settings.
The tracker is designed to be lightweight and fast. There are no animations that slow down interaction, no loading spinners, and no network requests. Checking off a habit is instant, and the heatmap and streak counters update in real time. This responsiveness is intentional — a habit tracker that feels slow or cumbersome to use becomes a habit you abandon, defeating its purpose.
Whether you are building a morning routine, tracking fitness goals, managing a medication schedule, or simply trying to floss daily, the Daily Habit Tracker provides the structure and feedback loop you need to make consistency feel rewarding rather than burdensome.
More examples
Examples
Track exercise
Input
Add habit "Exercise" with 🏃 emoji
Output
Habit appears in weekly grid. Check off each day you exercise.
View streaks
Input
7 consecutive days checked
Output
Current streak: 7 days 🔥 | Longest streak: 7 days
Frequently Asked Questions
- Where is my habit data stored?
- All data is saved in your browser's localStorage. Nothing is sent to any server. You can export your data as JSON for backups or migration to another device.
- How are streaks calculated?
- A streak counts consecutive days where you completed the habit, working backwards from today. The longest streak tracks your all-time best run. If you miss a single day, the current streak resets to zero but the longest streak is preserved.
- Can I edit or delete habits?
- Yes. Click the edit icon next to a habit to rename it or change the emoji. Click delete to remove it. Deleting a habit also removes its entire completion history, so export your data first if you want to preserve it.
- What does the heatmap show?
- The heatmap displays the last 12 weeks (84 days) of data for each habit. Darker green cells indicate completed days, gray cells indicate missed days. It gives you an at-a-glance view of your consistency over time.
- How many habits can I track at once?
- There is no hard limit. Since data is stored in localStorage (typically 5–10 MB), you can track dozens of habits without issues. Each habit stores minimal data — just a daily boolean for 84 days plus metadata.
- Can I export my habit data?
- Yes. Use the export button to download all your habit data as a JSON file. This includes habit names, emojis, completion history, and streak information. You can use this as a backup or to analyze your data in a spreadsheet.
- Does the tracker work across multiple devices?
- Each device maintains its own independent dataset in localStorage. To sync between devices, export your data from one device and import it on another. A future update may add optional cloud sync.
- Is this tool free?
- Yes, completely free with no account required. The Daily Habit Tracker runs entirely in your browser with no subscriptions or hidden costs.