For the generated websites:
Almost none, just any web-server like Apache, Nginx, IIS that can deliver HTML files. No server side languages or databases needed. So basically any hosting package you can buy on the internet.
Browsers for Mame Builder:
Latest versions of:
- Chromium or Google Chrome or any web browser based on it
We haven't tested the builder at all with Internet Explorer and we won't support it. And no mobile devices are not supported for editing websites, it may work, but it's actually no fun, use a device with a higher resolution (FullHD or better).