Check your BMI and calorie needs, plan your savings or your loan, format code. No sign-up, and nothing is sent to a server: everything runs in your browser.
Health
BMI, healthy weight range, ideal weight and body fat estimate.
HealthBMR, TDEE and daily calories to lose or maintain weight.
Finance
Monthly payment, total cost and amortization schedule of a loan.
FinanceGrow your savings: deposit, contributions, rate, time, inflation.
FinanceFrench gross ↔ net salary 2026, with take-home pay after tax.
Developer tools
Validate, pretty print, minify and sort JSON keys.
Developer toolsEncode and decode Base64 / Base64URL text, UTF-8 safe.
Developer toolsBeautify and indent MySQL, PostgreSQL, SQL Server, Oracle queries…
Developer toolsPretty print, validate and minify XML with error detection.