ToolNest

ToolNest

131 free tools that run entirely in your browser

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ToolNest is a free toolbox of 131 calculators, converters, PDF tools and developer utilities that run 100% in your browser — nothing you type is uploaded anywhere. It covers the everyday jobs people actually search for: a mortgage calculator, a compound-interest planner, salary-and-tax calculators, unit converters, and tools like a JSON formatter and regex tester for developers. No sign-up, no accounts, no file ever leaves your device.

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