Privacy Policy

The site has no signup, login or newsletter. We do not ask for your name, email address, phone number or postal address, and there is nowhere on the site to enter them.

Calculations run in your browser. The numbers, dates and text you enter are not sent to us and are not stored on our servers. Developer and text tools — such as the JSON formatter, JWT decoder and word counter — process everything locally on your device by design.

If you use a share link, the values you chose to share are part of the web address you copy. Only the calculator inputs are included; nothing is added to it.

Favourites, recently used tools and any saved calculator entries are kept in your browser's local storage on that device only. Clearing your browser data, or using the clear-history buttons on the site, removes them permanently. We cannot read them.

We record anonymous counts of which tool pages are opened and how often a calculation is run, so we know which tools to improve. These counts contain the tool name only — never the values you entered — and are not linked to you as an individual.

The site displays advertising supplied by Google AdSense. Google and its partners may set cookies or similar identifiers to show and measure adverts, including personalised ones where permitted. You can manage this at Google's Ads Settings, and you can block or delete cookies in your browser at any time; the calculators keep working either way.

Our own hosting provider keeps standard short-lived server logs, such as requested addresses and error records, to keep the site available and secure.

The site is a general-audience reference tool and is not directed at children under 13, and we do not knowingly collect information from them.

Because we hold no account data, there is normally nothing personal for us to export or delete. If you have a privacy question or request, reach us through the contact page.

If this policy changes we will update the date at the top of the page.