26 free tools — no account, no installation required.
Calculate monthly loan payments, total interest, and full borrowing cost for any fixed-rate loan. Works for mortgages, car loans, and more.
Find the maximum loan amount you can afford based on your monthly budget and interest rate.
Convert between 30 world currencies with live or manual exchange rates. Handles USD, EUR, GBP, JPY, CNY, and more.
Calculate percentage of a number, what percentage one value is of another, and percentage change — three calculators in one.
Calculate final price after a discount, the savings amount, or reverse-engineer the discount rate from two prices.
Calculate the tip amount and split the total bill equally between any number of people.
See how investments grow over time with compound interest, including regular monthly contributions.
Calculate the exact number of days, weeks, and months between any two dates. Handles leap years automatically.
Calculate exact age in years, months, and days from a date of birth. Shows total days lived and days until next birthday.
Convert any date and time between 18 world time zones. Daylight saving time is handled automatically.
Format, validate, and minify JSON with syntax highlighting and error detection. Runs entirely in your browser.
Encode text to Base64 or decode Base64 strings back to plain text. Supports Unicode, emoji, and non-Latin characters.
Convert colors between HEX, RGB, HSL, and HSB/HSV formats instantly. Includes a visual color picker.
Encode special characters in URLs using percent-encoding, or decode percent-encoded URLs back to readable text.
Test regular expressions with live match highlighting. Supports flags (g, i, m) and shows capture groups.
Convert special characters to HTML entities and decode HTML entities back to plain text.
Build and validate cron expressions visually with a plain-English schedule description. Copy-paste ready output.
Generate strong random passwords with custom length, uppercase, lowercase, numbers, and symbols.
Count words, characters, sentences, and paragraphs instantly. Includes reading time estimates.
Generate random integers or decimals within any range. Supports multiple numbers and no-duplicate mode.
Calculate your Body Mass Index (BMI) from height and weight in metric or imperial units.
Convert between units of length, weight, temperature, area, and speed. Results update instantly.
Convert text between UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, and kebab-case.
Calculate your Total Daily Energy Expenditure and daily calorie targets for weight loss, maintenance, or gain.
Write Markdown with a live side-by-side HTML preview. Supports full CommonMark syntax. Runs in your browser.
Generate RFC 4122 UUIDs in v1, v4, or v5 format. Options for quantity, uppercase, and hyphen formatting.