Quick Tools Calculators - 70 free calculators that run in your browser
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I got tired of calculator sites that hide a ten-second answer behind pop-ups, signup walls, and autoplaying ads. So I built tools that do one job per page and run entirely in the browser. No account, and nothing you type gets stored or sent anywhere. There are 70 of them now. Money side: salary increase (yearly/monthly/biweekly/hourly), credit card payoff, personal loan, CD interest, HELOC, mortgage refinance. Developers get a regex tester, subnet calculator, and JSON formatter.
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I got tired of calculator sites that hide a ten-second answer behind pop-ups, signup walls, and autoplaying ads. So I built tools that do one job per page and run entirely in the browser. No account, and nothing you type gets stored or sent anywhere. There are 70 of them now. Money side: salary increase (yearly/monthly/biweekly/hourly), credit card payoff, personal loan, CD interest, HELOC, mortgage refinance. Work side: hours with unpaid breaks and an overtime flag, plus a date calculator that can do business days. Everyday math: ratios, percentages, discounts. Developers get a regex tester, subnet calculator, JSON formatter, and UPC check-digit tool. Home projects get concrete, roofing, and sod estimators. Every page shows the formula so you can see how the number was made. Tell me which one you want next.