Tools that just work
Calculators, converters and image & PDF tools that run entirely in your browser. No sign-up, nothing to install, and your data never leaves your device.
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Small everyday sums that everyone needs and almost no one remembers how to do
UtilWebPro grew out of a very specific frustration: every time I needed to strip the VAT out of an invoice, add up a week's working hours or check the letter on a Spanish ID, I ended up on pages buried in pop-ups, forced sign-ups and ads that covered the very thing I was looking for. Simple calculations turned into a small nightmare.
This site is built on the opposite idea. On one hand, give you the tool and have it work instantly, with nothing to install and no account to create. And on the other, the part I really care about, explain how the calculation actually works. I'm not interested in you coming back each time none the wiser; I'd rather you leave knowing where a check digit comes from or why you divide, not subtract, to remove VAT. A tool that also teaches is worth far more than one that just spits out a number.
It's made both for people who run into these sums in everyday life — a coursework word limit, the hours on a timesheet, a QR code for a party — and for freelancers and small businesses who repeat them every week and need them done well and fast. Everything happens inside your browser: the data you type never leaves your device or gets stored on any server, because nobody needs to keep hold of your information just to add up two hours.
It's a project I look after and keep growing little by little, adding tools and improving the explanations as people tell me what's missing. If a calculator has saved you a bit of time or cleared something up, it has done its job.
— Made in Spain, on the idea that useful things can also be simple.