Daily Routine Tracker

This tool helps you easily track your vehicle’s maintenance and oil change schedule — all without creating an account or storing any data online. It works entirely within your browser, saving your vehicle information locally using IndexedDB or localStorage. You can add multiple vehicles, record service and oil change details, and instantly view how many…

The Smart Exam Time Planner helps you quickly create a personalized study schedule for your exams. Just enter how many subjects you want to prepare for, and the form will automatically create fields for each one. Add each subject’s name, choose its difficulty (Easy, Medium, or Hard), then enter how many days you have left…

This tool helps you understand and predict your menstrual cycle with medical-grade accuracy. Simply enter the date of your last period, and it will automatically calculate your upcoming period dates, ovulation day, and fertile window using a precise luteal phase algorithm. The system adapts to your personal cycle history over time through median-based calculations and…