Privacy policy
Updated
This site has no accounts and no forms to fill in. Every calculator runs entirely in your browser; typing in a measurement or picking a material doesn’t send anything anywhere. The only time your inputs leave your device is if you use the Share or Copy button yourself, which puts them into the page’s own web address so you can save or send that link.
Hosting
This site is hosted on Cloudflare. Like most hosts, Cloudflare keeps short technical logs, such as IP address and browser type, for security purposes, under Cloudflare’s own privacy policy.
Visits
Visits are counted with Cloudflare Web Analytics, which doesn’t use cookies and doesn’t track you across other sites.
If you email me through the Contact page, I use that address only to reply to you. It isn’t added to a mailing list or shared with anyone.
No selling or sharing
I don’t sell or share visitor data with anyone, because beyond the technical logs above, I don’t collect any to begin with. There are no third-party trackers, ad pixels or analytics scripts on this site beyond the cookieless visit counting described above.
Your calculator inputs
Nothing you type into a calculator is stored anywhere by me, in a database or otherwise. If you use Share or Copy, your inputs travel only as far as wherever you paste or send that link yourself.
Ads
There are no ads on this site today. If that changes, this page will be updated first, and it will say exactly what any ad partner stores and how.
Children
This site isn’t aimed at children under 13, and I don’t knowingly collect anything from them; there’s nothing here to collect in the first place.
Changes
Any change to this policy updates the date at the top of this page. Questions go to the Contact page.