About Finance Tools

Finance Tools is a collection of free calculators for personal and business finance. Every tool runs entirely in your browser so your loan amounts, income figures, and other inputs never leave your device.

Why we built it

Most finance sites hide their math behind server calls or ads. We publish the formulas, link to independent references, and let you share calculator inputs through the URL when you want to compare scenarios with someone else.

What we do not do

We do not store calculator inputs, sell user data, or provide personalized financial advice. Results are estimates meant to help you understand the math before talking to a qualified professional.