About Vastorae

What is Vastorae?

Vastorae is a small publisher of single-purpose online tools: calculators, unit converters, text utilities, and developer helpers. Each tool page is meant to do one job well and to explain what the result means—how-to steps, worked examples, FAQs, and (where relevant) the formula or method we use.

We focus on everyday tasks people actually search for: comparing unit prices at the grocery store, estimating a loan payment, converting hours for a timesheet, checking color contrast, or cleaning up text for the web. The site is deliberately lightweight so pages load quickly on mobile and desktop.

Who it’s for

Students checking homework math, writers hitting a word limit, developers needing a quick hash or URL encode, homeowners comparing mortgage scenarios, and anyone who wants a private browser-based answer without creating an account. We optimize for clarity and speed: one job per tool, minimal distraction.

How we build tools

Where a standard method exists, we follow it and document it. Unit conversions use conventional SI and customary factors; contrast checks follow WCAG-style luminance ratios; energy and loan math use widely taught formulas. We publish a Sources & methods page so you can see what we rely on. Results are for informational and personal use—they are not professional financial, medical, or legal advice.

We also write guides that go beyond the widget: percentages and discounts, mortgage basics, unit conversion, health metrics, and more. Guides link to the tools and tools link back to guides so the site works as a small reference library, not only a grid of calculators.

Privacy and ads

Core calculations run in your browser when possible. We do not require accounts, and we avoid upload-heavy workflows for everyday math and text tools. Light advertising helps keep the tools free. For cookies, analytics, and ad partners, see our Privacy policy.

Why it exists

Too many “free tool” sites bury a simple calculator under pop-ups, sign-up walls, or pages with almost no explanation. We wanted the opposite: open the page, enter values, get a result, and understand the assumptions. Vastorae is maintained by a small team; we ship carefully rather than flooding the site with empty stubs.

How to contact us

Bug reports, tool ideas, and corrections are welcome on our contact page or by email at vastorae@gmail.com. For legal terms of use, see Terms.