Contact

Found a bug, have a feature request, or want to report a problem? We read every message.

What to include

• The name of the tool and the page address.
• Your browser and device (for example “Chrome 130 on Windows 11”).
• What you expected to happen and what happened instead. A small sample file or text snippet helps a lot — please remove anything private first.

Response time

This is an independent project, so replies usually take a few days. We cannot give personal support for individual documents, applications or exams — the tools run in your browser and we never see your files.

Advertising and business enquiries

For partnership or advertising questions, use the same address and put “Business” in the subject line.