Privacy
Analytics is on; beyond that there is almost nothing to report — this page says which is which.
Google Analytics 4 (GA4) is switched on here to count page views and traffic sources. Beyond that there are no ads, no user accounts, and no collection of names or email addresses. Whatever you type into the tools stays in your own browser.
Analytics and cookies
This site uses Google Analytics 4 (GA4) to measure page views and traffic sources. Page URLs, browser and device information are sent to Google, and analytics cookies may be set. We do not intentionally send names, email addresses, exchange account details or tool form inputs. Tool inputs are processed locally in your browser. You can restrict cookies in your browser or block analytics scripts. There are no user accounts or advertisements. See the Google Privacy Policy.
What we don't do
- No ads and no advertising trackers. There are no ad slots and no advertiser scripts.
- No sign-up and no personal details. Reading the site needs no account, so we hold no name, phone number or exchange account information for you.
- No external fonts. The stylesheet, script and fonts are served from this domain; the only third-party request is the GA4 analytics script described above (googletagmanager.com).
Where the numbers you type go
Nowhere. The calculations run in your own browser, on the page you have open. Nothing is sent to a server and nothing is stored locally. Refresh or close the page and the inputs are gone.
Each tool page says this too — we treat it as part of describing the tool rather than something to bury on a privacy page.
Server logs
The machine serving these pages keeps the sort of technical note nearly every web server keeps when it answers a request: what time it was, which page was asked for, the IP address it came from, and the browser string. That is used to keep the service running and secure. It is not used to profile you, and it is not sold or exchanged.
When you write to [email protected] we see your address and the contents of your message. Those are used to reply to you. They do not go onto a mailing list and they are not shared with third parties.
External links
We link to exchange pages and other external sites. Once you follow one, you are under that operator's privacy policy, which is outside our control. Links carrying a referral parameter identify this site as the source to the destination; the detail is in disclosure.
Your rights
Because we create no user accounts and collect no personally identifying information, there is normally no "your data" sitting here for you to reach, amend or erase. If you think we are holding something of yours anyway — an email you once sent, say — write in and ask us to delete it, and it will be deleted.
Changes
If this note changes substantively we will update this page and log a line in corrections. The current version describes the site as at October 2026.