Free online tools that just work

Calculators, converters and everyday utilities. No sign-up, no clutter.

Calculators

Age CalculatorEnter a date of birth to get the exact age today, or change the second date to find the age on any other day.
Discount CalculatorEnter a price and a discount to see what you pay and what you save. Got two prices instead? The second box tells you the percentage off.
Percentage CalculatorSolve the three everyday percentage questions. Type in any row and the answer and formula appear as you type.

Converters

Text Tools

Word CounterType or paste your text below. The counts update as you type, and your text never leaves your browser.

Developer Tools

JSON Formatter and ValidatorPaste JSON to validate and format it instantly. Errors are shown with the exact line and column, and your data never leaves your browser.

Generators

Password GeneratorA new strong password is ready below. Adjust the length and characters, then copy it. Passwords are created on your device and never sent anywhere.