Free Online Tools & Calculators
94+ fast, private, no-login tools — calculators, converters, image & PDF utilities and developer helpers. Everything runs in your browser.
Popular Tools
Age Calculator
Work out an exact age in years, months and days from a date of birth.
Attendance Calculator
Find your attendance percentage and how many classes to attend or can skip.
Base64 Encode / Decode
Encode text to Base64 or decode it back, with full UTF-8 support.
BMI Calculator
Work out your Body Mass Index from your weight and height, with the WHO category.
Break-even Calculator
Find the number of units and revenue you need to cover your costs.
Calorie Calculator
Estimate your daily calorie needs to maintain, lose or gain weight.
Car Loan Calculator
Estimate the EMI on a car loan after your down payment, with total interest and cost.
Case Converter
Convert text to UPPERCASE, lowercase, Title, Sentence, camelCase, snake_case or kebab-case.