Free tools for everyday work.
Calculators, converters, and developer utilities — all in one place.
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Percentage Calculator
Percentages, tips, discounts, and percent change.
Open toolDiscount Calculator
Savings and final price after a discount.
Open toolUnit Converter
Length, weight, temperature, and more.
Open toolLoan Calculator
Monthly payments, interest, and total cost.
Open toolDate Calculator
Days between dates, add or subtract time.
Open toolBase64 Encoder
Encode and decode Base64 in your browser.
Open toolJSON Formatter
Format, validate, and inspect JSON.
Open tool