ToolExo is a free collection of online calculators and everyday utilities built for people who need a clear answer fast, without signing up, installing anything, or handing over personal data.
Every tool runs directly in your browser. Inputs are processed on your own device, so the numbers you type, whether salaries, loan amounts, body measurements or dates, never leave your computer. There is no account wall, no email capture before you can see a result, and no paywall hiding the number you actually came for.
The calculator library covers the questions people really search for: loan and mortgage repayment, compound interest and savings growth, percentage and discount math, unit and currency conversion, BMI and calorie estimates, date and working day counting, plus a growing set of text and developer helpers. Each page states the formula it uses and walks through a worked example, so you can check the math yourself instead of trusting a black box.
Where a result depends on assumptions, whether that is interest compounding, tax brackets or metabolic rates, the tool shows those assumptions next to the answer rather than burying them in a footnote. That matters when a calculator is used for a real decision instead of a rough guess.
ToolExo is maintained by a small independent team and funded by unobtrusive advertising rather than data sales. New calculators are added based on what visitors search for, and existing ones are updated when rules or rates change. If a tool is wrong or missing, there is a direct contact route and corrections are published openly.
Explore more artificial intelligence tools on IndieHunt.
