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Everyday Power Tools
The stuff Google gives you half an answer for — compare two texts, see a full loan schedule, do real date math, and work percentages both directions.
Text Compare (diff)
Paste two versions to see exactly which lines were added or removed.
Loan Amortization Schedule
See every payment broken into principal and interest — not just the monthly number.
Date Calculator
Difference between dates, add/subtract days, business days, and exact age.
Difference between two dates
Add / subtract days
Age calculator
Percentage Calculator
Four everyday percentage questions, answered instantly.
What is X% of Y?
X is what % of Y?
Percentage change from A to B
Answers, not just a number
A search engine can tell you a monthly payment, but not show you how much of payment #37 goes to interest, or how many working days are between two dates, or reverse a percentage. These tools do the full calculation on your device — no sign-up, no uploads, and they keep working offline once the page has loaded.