UD5 Toolkit
Habit Contract Builder – Online Create Commitment Statement
Write a self-contract with a goal and reward/penalty. Sign digitally, save as image. Stay accountable.
Habit Streak Counter - Online Daily Check-in & Chain Visualizer
Habit Streak Counter
Daily check-in & chain visualizer — never break the chain
Tip: Click the big button daily
Overall Activity Heatmap
Last 12 weeks
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Frequently Asked Questions
A habit streak is the number of consecutive days you've successfully completed a habit. It's a powerful psychological motivator — the longer your streak, the less likely you are to break it. This technique, popularized by Jerry Seinfeld's "Don't Break the Chain" method, leverages our natural desire for consistency and loss aversion to build lasting habits.
The current streak counts backward from today (or yesterday if you haven't checked in today yet) until it finds a day without a check-in. The longest streak is tracked historically — it's your personal record across all time. Both metrics update automatically whenever you check in.
This tool is designed for daily check-ins on the current day only. You cannot backdate or pre-date check-ins. This encourages genuine daily engagement. If you miss a day, your streak resets — but your longest streak record remains as a testament to your best effort.
Yes! All your habits, check-in history, and streaks are automatically saved to your browser's local storage. They persist across sessions — close the tab, reopen it, and everything is still there. You can also export your data as a JSON file for backup or import it on another device.
Unlike app-based trackers, this tool is entirely web-based with no sign-up, no ads, and no paywalls. It features a GitHub-style contribution heatmap for each habit, giving you a beautiful visual overview of your consistency. The combined overview heatmap shows your total daily activity across all habits. Plus, it works great on mobile — add it to your home screen and use it like a native app.
There's no hard limit — you can track as many habits as you like. However, we recommend focusing on 3-5 key habits for the best results. Too many habits can dilute your focus. Start small, build momentum, and add more as your routines solidify.
- Start small — choose habits that take under 2 minutes initially
- Set a daily reminder — use your phone's alarm at the same time each day
- Pair habits — attach a new habit to an existing routine (habit stacking)
- Don't miss twice — if you slip, get right back on track the next day
- Celebrate milestones — 7 days, 30 days, 100 days are worth acknowledging
Small Pet Playtime Tracker – Online Daily Out‑of‑Cage Log
Log floor time minutes for small pets. See weekly average. Ensure enough exercise. Local storage.
Fridge Leftovers Manager – Online Track & Expiry Alerts
Log leftovers with date stored and set visual alerts when they need to be eaten. Reduce food waste. Local storage.
Baby Feeding Log - Online Track Breast & Bottle Patterns
Record feeding times, side (left/right for nursing) or oz for bottle. Track daily patterns. Data stays in your browser. Simple newborn helper.
Mileage Log Tracker - Online Record Distance & Fuel Expenses
Track odometer readings, distance, fuel fill-ups and compute MPG/L/100km. Data stored in localStorage. Simple expense summary for tax or budgeting.
Sobriety Counter & Milestones - Online Recovery Tracker
Track days of sobriety with a motivational counter and milestone celebrations. Set quit date and see time elapsed in days, hours, minutes. Private & local.
Daily Mood Tracker - Online Emoji Journal & Chart
Track daily mood with emoji selection and optional notes. See weekly/monthly mood trends in a color-coded chart. All data stored privately in localStorage.
Sleep Debt Tracker - Online Cumulative Sleep Loss Calculator
Log daily sleep to see cumulative sleep debt or surplus over weeks. Visualizes chronic sleep loss trends. Stores data locally in your browser only.
Redirect Rule Tester - Online See How Browsers Follow
Enter a URL and see the full redirect chain with status codes and response times. Also validates against your chosen rule.
Sleep Log Tracker - Online Record Hours & Quality
Log the hours you slept each night and rate the quality. See a weekly bar chart. Local storage.
User Idle Time Display - Online See Seconds Since Activity
Shows a counter of how many seconds you have been idle. Tracks mouse and keyboard activity without recording.
Emoji Counter - Online Tally Your Messages
Paste text and see a sorted count of all emojis used. Find your most‑used emoji. Fun analytics. All local.
Tennis Scoring Simulator - Online Point Tracker
Keep track of a tennis match: points, games, sets, and deuce. Supports tiebreak. Great for friendly matches. Local.
Movie Watchlist - Online Save Films to Watch
Keep a simple list of movies you want to watch. Add notes and check them off. Purely local storage.
Book Reading List - Online Track To‑Read & Finished
Add book titles and authors to a to‑read list. Move them to 'finished' and add a rating. Data saved locally.
Simple Water Tracker - Online Click Glass Count
Tap a glass icon each time you drink a cup of water. See your daily intake. Reminders optional. Local storage.
Tab Counter & Memory Estimator - Online Window Stats
See how many tabs you have open and estimate memory usage based on navigator object. Fun productivity check.
Mood Color Journal - Online Track Days with Hues
Pick a color for each day's mood and see a month‑at‑a‑glance heatmap. Data stored locally. A private emotional log.
Synonym Chain Builder - Online Word Association Game
Start with a word and find synonyms, then synonyms of synonyms. Build a chain and explore language. Local thesaurus.
Body Measurement Tracker - Online Fitness Progress Logger
Log neck, chest, waist, hip, and limb measurements over time. See changes on a chart. All data stored locally.
ISS Tracker - Online Live Where is Space Station
See the International Space Station’s current position on a world map in real time. Uses public API. No refresh.
Subscription Rename & Cost Calculator - Online Saver
Track your subscriptions, calculate monthly and yearly totals, and find savings by pausing unused services. Local data.
Plant Watering Schedule - Online Reminder & Tracker
Add plants and track when you last watered them. Get a simple visual alert when it's time to water. Local storage.
Click Counter - Online Tally & Increment Tool
A large, simple button to count anything. Plus / minus, reset, and save count to localStorage. Works offline.
Recent Earthquake Tracker - Online USGS Live Data Map
View recent earthquakes worldwide on a map. Fetches public USGS GeoJSON feed directly from browser. Real-time data.
Coin Collection Logger - Online Simple Inventory Tracker
Log your coin collection with year, mint, and grade. Filter and sort. Data stored in localStorage. For numismatists.
Syllable Counter - Online Words & Poetry Tool
Count syllables per word and for entire text blocks. Ideal for writing haikus, poetry, and literacy exercises. Local algorithm.
Redirect Path Tracer - Online SEO Redirect Chain Analyzer
Enter a URL and trace the full redirect chain, seeing each hop's status code and location. Identify unnecessary redirects. Client-side fetch.
Net Worth Tracker - Online Assets & Liabilities Overview
Log your assets and liabilities to calculate your net worth over time. Data saved only in your browser for security. Simple and clutter-free.
Habit Tracker - Online Free Daily Routine Builder
Build good habits by tracking daily completions. Visualize streaks and progress. Pure browser storage keeps your habit data private and offline-capable.