About Toolzent

Toolzent is a free collection of 200+ online tools and calculators covering maths, statistics, finance, tax, health, fitness, unit conversion, date & time, cooking, text utilities, generators, developer tools and more. Our goal is simple: replace dozens of clunky single-purpose sites with one fast, clean, trustworthy hub.

Our principles

• Free forever — no accounts, no paywalls, no usage limits.
• Private by design — every tool runs in your browser; the values you enter are never uploaded to a server.
• Accurate & transparent — each tool shows the formula it uses plus a worked example, so you can verify the result.
• Fast & accessible — lightweight pages that work on any phone, tablet or desktop.

How we build and check our tools

Every calculator implements the standard, documented formula for its task. Before publishing, each tool is tested against known reference values and reviewed for edge cases (zero, negative, empty and very large inputs). On each tool page we publish the underlying formula and at least one worked example so you can confirm the math yourself. If you ever spot a result that looks wrong, please tell us and we’ll correct it quickly.

Important note

Our tools are for general information and education only — they are not professional financial, medical, legal or tax advice. For important decisions, please consult a qualified professional. See our Disclaimer.

How Toolzent is funded

Toolzent is completely free to use. To keep it that way, the site is supported by unobtrusive display advertising (such as Google AdSense). Ads are clearly distinguishable from our tools and content, and they never affect the results a tool produces.

Get in touch

New tools are added regularly. Have a request, found a bug, or want to report an inaccurate result? Contact us — we’d love to hear from you.