About ToolNest
Who We Are
ToolNest is a small, independent project with one simple goal: make everyday calculations easy for everyone. We build free online calculators and tools — for mortgages, US taxes, retirement savings, health checks, unit conversions and all the small maths of daily life — and we put them on the open web where anyone can use them without paying, signing up or downloading anything.
We are not a bank, a tax consultancy or a clinic. We are a team that believes useful software should be free, fast and private, and that the best tool is the one that works the moment you need it — on a phone in an airport or a laptop at the office.
Our Mission: Free Tools for Everyone
Most calculator websites are either cluttered with ads or locked behind accounts. Ours is built the other way around: every tool is free, every calculation happens in your browser, and nobody needs your email address to get an answer. We focus on the questions people actually ask — what will my mortgage payment be, how much tax comes out of my salary, how much should I tip, what time is it in London — and answer them in seconds with clear, honest math.
Our mission is to keep every one of these tools free forever, without accounts and without your data being the price of admission. If a tool helps one first-time homebuyer understand their payment, one student work out their GPA, or one family plan their retirement contributions accurately, it has done its job.
Editorial Standards: How We Keep Numbers Honest
Every calculator on ToolNest is built on documented, standard formulas — the mortgage amortization formula, the BMI equation, the IRS's published tax brackets — and each tool page explains the method with a worked example so you can check our maths by hand.
Where a tool depends on a rate that changes over time — currency exchange rates, gas prices, sales tax rates — the rate is editable. We ship sensible default values and review them regularly, but you should always be able to type in today's actual rate. If you ever spot a wrong default or an outdated figure, tell us through the contact page and we will fix it.
No Account Needed — Ever
You will never be asked to create an account, hand over an email address, or install an app to use ToolNest. Every calculation runs entirely in your browser, on your own device. We do not see, collect or store the numbers you enter. That is a deliberate design choice: your salary, your health details and your finances are your business, not ours. Read our privacy policy for the full picture — it is short, because there is very little to say.
How We Stay Free
ToolNest is free to use and we intend to keep it that way. To cover hosting and development costs, we plan to show a small number of unobtrusive advertisements in the future, clearly separated from our tools and content. We will never sell your data — there is nothing to sell — and ads will never change a calculation's result. Our disclaimer explains the limits of what our tools can tell you.