Contact
Email [email protected] with questions, corrections and bug reports.
There is no contact form. A form needs either a server to receive it or a third-party service to forward it, and this site is static HTML with no server and no third-party services at all — the same reason it has no build step either.
If you are reporting a problem with one of the tools, it helps to say which tool, which browser and device you were using, and what you expected to hear.