Contact
There is no contact form here, because a form means a server and a database, and this site deliberately has neither. Email works fine.
Useful things to include
If you are reporting a problem with a tool, the two details that help most are which tool and what you expected to happen. If a file would not process, its type and rough size is useful. Please do not send us the file itself: we cannot debug it any better than you can, and we would rather not have a copy.
What to expect
This is a small project, so replies are not instant, but bug reports get read and acted on. Requests for new tools genuinely influence what gets built next.
Advertising and privacy
For anything about the ads on this site, or a question about your data, our privacy policy covers most of it. If it does not, email the address above.