Contact
Questions, corrections and feedback about the tools are welcome by email. There is no contact form and no account to create.
For a conversion problem, include the exact input, the tool you used and the result you expected. For an alphabet or data correction, a link to a published source helps verify the change.
Response time
This is a small independent project, so replies may take a few days. Bug reports and factual corrections are read first. Please do not send private or sensitive text; a short example is enough to reproduce a problem.