About

Tooliv0 builds free, accurate financial calculators that help people make better money decisions.

Every calculator runs entirely in your browser. We do not collect, store or transmit any data you enter. Your numbers stay on your device.

Our formulas follow standard financial mathematics. Each calculator documents its method, shows a worked example, and lists the assumptions behind its results. We cross-check outputs against published reference cases and run automated unit tests to catch edge cases.

Tooliv0 is an independent project. We are not affiliated with any bank, lender or financial institution. The tools are educational and informational — they do not replace professional financial advice.

Questions or feedback? Reach us at contact@tooliv0.com.