Contact

Corrections and requests are genuinely welcome. A wrong answer in a quiz is a bug, and it gets fixed faster if someone reports it.

Report something wrong

If a quiz answer is out of date, a capital has moved or a translation reads badly, send it through the feedback form . Say which tool and, if you can, quote the question. That is usually enough to find it.

Ask for a tool

Most of what is here started as somebody needing it once. If a tool you keep looking for does not exist, the feedback form is the right place for that too.

Using the APIs

The free APIs need no key and no registration. If you are planning to point production traffic at them, get in touch first so the capacity is not a surprise to either of us.

Privacy questions

What the site stores is set out on the privacy page. Anything it does not answer can go through the feedback form.