Tool Directory

Browse all available free online tools including JSON formatter, QR code generator, regex tester and more.

Compound Interest Calculator

Calculate compound interest and future value of regular deposits

Find out how many calories you need daily for weight loss, maintenance, or muscle gain

Add, subtract, multiply, and divide fractions with automatic simplification

Calculate your GPA on a 4.0 or 5.0 scale — add courses and credits easily

Estimate your body fat percentage using the U.S. Navy method

Calculate your running or swimming pace, or predict finish times for any distance

Estimate fuel costs for your trip — based on distance, mileage, and fuel price

Calculate sales tax or remove tax from a price

Generate a full loan repayment schedule — see how much goes to principal vs interest

Turn your code snippets into beautiful, shareable images with syntax highlighting

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