20171 bulk IDN domain converter

I need to convert a list of IDN domains to their native characters. Domains are in in [login to view URL] format (yes, that is a real domain) In use, I would paste the domains into a textbox, hit submit, and have it return the converted domains. Developer may need to download the IDN SDK [login to view URL] Developer would upload the necessary components to my server, then let me paste a large list (several hundred or a few thousand records) and have them converted in my browser so I can copy them to my clipboard. Basically, create a tool like this [login to view URL] but allow for bulk processing. (native, race, or punycode)