About Openwebly

Openwebly is a free library of financial calculators and education designed to help everyday people make smarter, more confident money decisions. From mortgages and loans to investments, taxes and retirement planning, every tool gives you clear, accurate results in seconds — no sign-up and no jargon.

Our mission

Good financial decisions should not require expensive software or a finance degree. Our mission is to make professional-grade financial tools accessible to everyone, paired with plain-English guides that explain the concepts behind the numbers. We want you to leave the site understanding not just the answer, but why it is the answer.

Privacy first

Privacy is built into how the site works. Every calculation runs entirely in your browser. We do not require an account, we do not store the numbers you enter, and nothing you calculate ever leaves your device. You can model your most sensitive financial scenarios with complete peace of mind.

How our calculators work

Each calculator uses established financial formulas — the same compounding, amortization and tax math used by professionals. We document the formula and a worked example on every page so you can see exactly how a result is produced and verify it yourself.

Why trust us

We are independent and reader-focused. Our calculators are free to use, our guides are written to teach rather than to sell, and we clearly separate education from advertising. When we are unsure, we say so, and we always encourage you to confirm important decisions with a qualified professional.

The results and articles are provided for informational and educational purposes only and do not constitute financial advice. For decisions that affect your finances, please consider speaking with a licensed professional. See our financial disclaimer for more detail.