Here you can find information about available languages on AskNebula website.
Website content:
Our AskNebula.com website and all services such as chatting with our professional advisors are available only in English language.
You can use automatic translator function on the GoogleChrome to translate all content on the website. Here is the screenshot:
All available web browsers support this function. If not, you can check available extensions for preferable one.
Chatting with astrologers:
As for chatting with our advisors, they all have a good built-in translator in our system for such cases.
So if you do not understand English, please let our astrologer know about it and he will give you the reading on the preferable language.
Also please see full AskNebula.com guide here: AskNebula tutorial