One page, one job — done properly.

What SmartWebTools is

SmartWebTools is a small collection of everyday calculators and converters — percentages, BMI, age, loan payments, text tools and a few more. Each one lives on its own page, does one job, and shows its work in a short explainer underneath, rather than burying a single tool inside a cluttered "all-in-one" site.

How it's built

Every calculation runs directly in your browser using plain JavaScript. Nothing you type into a tool — a birth date, a loan amount, a password you're generating — is sent to a server or stored anywhere. Refreshing the page clears everything.

Why it's free

The site is supported by lightweight advertising, which keeps every tool free to use without accounts, subscriptions, or paywalls. See the Privacy Policy for details on the limited data involved.