About LittleCalcs
Small, free, fast tools that answer one specific question — no signup, no upsell, no thousand-word article before the answer.
What this is
LittleCalcs is a growing set of single-purpose calculators for questions people actually search for — "how many Schengen days do I have left," "when does my car seat expire," "is a chest freezer worth it." Each tool runs entirely as one self-contained page: open it, get your answer, done.
There's no catalogue account, no email gate, and no artificial delay before you see a result. If a page ever asks for a login just to compute something, that's a bug — tell us.
Who makes it, and how
LittleCalcs is run by one person, not a company. Most of the day-to-day work — researching whether a tool is worth building, writing the code, and testing it — is done with AI tools, with a human setting direction, approving anything that costs money, and reading the results afterward — not reviewing each page before it publishes. We're saying that plainly here because we'd rather you know than assume a bigger team is behind this.
Every page ships with an automated test suite covering its underlying math, plus a review pass by a second, independent reviewer before it goes live — the same bar any of these tools would want applied to a number they were trusting.
What we collect — and don't
Nothing you type into a calculator is ever uploaded. Trip dates, invoice line items, recipe ingredients — whatever you enter stays in your browser, computed locally, and at most saved to your own device's local storage so the page remembers it next time you open it. No server ever sees it.
We use GoatCounter, a privacy-focused analytics tool, to see roughly how many people visit each page and where from. It doesn't use cookies and can't identify you personally.
No accounts, no ads, no affiliate links today. If that changes on a specific page in the future, it'll be disclosed clearly on that page, not buried.
Get in touch
Found a wrong answer, a broken page, or want to suggest a tool? Real bug reports and requests get read.
Who makes LittleCalcs?
One person, working with AI tools that do most of the research, coding, and testing for each page, with a human setting direction, approving spend, and reading the results afterward — not reviewing each page before it publishes. It is not a company, and there is no team behind it.
Does LittleCalcs collect my data?
Nothing you type into a calculator ever leaves your browser. The only data collected is privacy-focused page-view analytics (GoatCounter) — no cookies, no cross-site tracking, no way to identify you personally.