Privacy
The short version: no accounts, no cookies from us, and nothing you type into a calculator ever leaves your browser. Here is the whole picture, in plain language.
Who runs the site
AllUnits.io is operated by CoreSync Technologies. Questions about this policy — or anything else — via the feedback form or [email protected].
What we don't do
No accounts. No cookies set by us. No personal data collected by us. The calculators and converters run entirely in your browser — dimensions, prices, and anything else you type are never sent to our servers. Our standing claim, posted on the About page and inside every embedded calculator:
No cookies, no accounts, no personal data. We count which tools get used and whether they work — never what you type into them. Counting honors Do Not Track and Global Privacy Control.
Usage counting
We keep first-party, anonymous, aggregate counts: which tools get used, and whether they work (for example, that a calculator produced a result, or that the feedback form failed). These counts carry no identifier of any kind — no user IDs, no session IDs, no fingerprints, no stored IP addresses — so they cannot be grouped into a person or a visit, by us or by anyone else. Counting honors the Do Not Track and Global Privacy Control browser signals: if either is on, we count nothing.
Counting is a small script — with JavaScript off, nothing is counted at all. With JavaScript on, this paragraph offers a one-click opt-out for this browser.
Advertising
The site is supported by display advertising. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to personalize the ads you see. You can opt out of personalized advertising in Google Ads Settings, or opt out of some other vendors' cookies at www.aboutads.info/choices. Ads are never shown inside embedded calculators on other people's sites.
The feedback form
If you use the feedback form, the name, email, and message you submit are emailed to us — delivered by Brevo, our email provider — solely so we can read and answer your message. No marketing lists, and nothing is shared beyond that delivery.
Hosting
The site is served by Cloudflare. Like any host, Cloudflare processes standard connection data — your IP address and browser information — to deliver pages and protect the site from abuse. In our own counting we see only country-level aggregates, nothing finer.
Embedded calculators on other sites
Calculators embedded on other people's sites do the same no-cookie counting. We record which site the embed is running on (the page address of the embedding page), and nothing about the visitor.
External links
Pages link out to sources and standards — manufacturer data sheets, building codes, university extensions — for reference. Those sites have their own privacy policies.
Changes
If this policy changes, the update is posted here with a new effective date.