About ToolVamp

ToolVamp exists because most online calculators are surprisingly bad. They load slowly, the formulas are sometimes wrong, and roughly a third of the page is usually ads or a popup begging for your email. We built this site to be the opposite of that.

Every tool here is free, loads in under a second, and runs entirely in your browser. There's no account to create. There's no newsletter we'll add you to without asking. We don't show you a "complete this survey to see your result" wall. The math just runs.

What we make tools for

The catalog leans heavily on the kinds of questions where doing the math by hand is annoying but not actually hard — adapting an oven recipe for an air fryer, figuring out what to set aside from a 1099 payment, sizing up a raised garden bed before you order soil. If a question gets googled often enough that we keep ending up on a slow ad-laden site to answer it, we usually end up building a calculator for it ourselves.

About your privacy

Calculations run in your browser using JavaScript. Whatever you type into a form is processed locally and never leaves your device. There's no API endpoint we send it to — there's nothing for us to log even if we wanted to. We do use Google Analytics on page views (industry standard, easy to block) and we serve some advertising. Neither of those have any access to your calculator inputs.

How we build the tools

Every formula gets pulled from a primary source: IRS publications for taxes, USDA tables for nutrition, peer-reviewed veterinary nutrition guides for pet feeding, manufacturer specs for materials. We include worked examples and source notes on the page so you can verify the math, not just trust it. When standards change (tax brackets, FEDIAF nutrient profiles, current USDA canning guidance), we update the calculator.

Where the site is going

We add tools when something is missing from our own day-to-day or when readers ask for it. The Contact page is the fastest way to suggest one — it goes to a real person, not a black hole. Bug reports also go there. If you spot something off in a formula or a result, we'd rather know.

Thanks for being here.