Tools
Small browser utilities you can use right away.
Text Tools
Count characters and clean up text for everyday writing and pasting.
Web and URLs
Clean URLs and create QR codes for web sharing.
Dates and Planning
Check deadlines, schedules, date differences, and business days.
Date Calculator
Calculate day shifts, differences, and business days.
Age Calculator
Calculate full age from your date of birth in your browser, plus Japanese era names, a simple year-based zodiac animal, a star sign from month and day, child-style month counts under six, day-count milestones, days until a chosen adulthood age (18 or 20), and a multi-person table with copyable text. Nothing is sent to a server.
Western Year and Japanese Era Chart
Check Reiwa, Heisei, Showa, Taisho, and Meiji era years, zodiac signs, and ages by Western year.
Age Chart
Check age, age before birthday, Japanese era year, and zodiac sign by birth year.
School grade chart
Estimate Japanese grade level and school milestone years from a birth date, plus a school-year overview table.
Image Creation
Light image tasks such as resizing.
Money Calculators
Calculate tax, discounts, salary, savings, subscriptions, and splitting bills.
Tax-Included / Tax-Excluded Calculator
Calculate tax-inclusive, tax-exclusive, and tax amounts.
Discount Calculator
Calculate discounted prices, savings, and discount rates.
Hourly Wage Calculator
Estimate pay from hourly wage and work hours.
Monthly Salary / Annual Income Converter
Convert salary, annual income, and hourly wages.
Subscription Annual Cost Calculator
Convert subscription costs by year, month, or day.
Savings Goal Calculator
Calculate how many months it takes to reach a savings goal.
Bill Split Calculator
Split a total amount by people and adjust rounding.
Security
Generate credentials and support safer account workflows.