Free Online Calculators & Tools

Fast, simple, and privacy-focused web tools designed to make your daily calculations effortless.

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Date & Time Tools

Calculate exact total days, weeks, and months remaining until any future event, birthday, or holiday.

Calculate total days, working business days (Mon-Fri), and time spans between any two calendar dates.

Calculate exact age in years, months, days, weeks, total hours, and countdown to your next birthday.

Add or subtract days, weeks, months, or years from any start date. Optional business days only mode.

Calculate percentage increase/decrease, percentage differences, and percent of numbers with step-by-step formulas.

Calculate final sale prices, total savings, stacked double discounts, and final price including sales tax.

Count words, characters (with and without spaces), sentences, paragraphs, and reading time live as you type.

Instantly convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case.

Generate secure, customizable passwords locally using cryptographically secure random numbers (crypto.getRandomValues).

Spin an interactive wheel to randomly pick winners from a list of names. Uses crypto-secure randomness.

All calculators and web utilities are completely free to use with no hidden fees or limitations.

Instant access without accounts, passwords, or personal data collection. Your privacy comes first.

Mobile-first design optimized for fast loading on smartphones, tablets, and desktop computers.