Greasy Fork is available in English.
RED/NWCD Upload Assistant
Accurate filling of new upload/request and group/request edit forms based on foobar2000's playlist selection (via pasted output of copy command), release integrity check, two tracklist layouts, colours customization, featured artists extraction, classical works formatting, coverart fetching from store, checking for previous upload and more. As alternative to pasted playlist, e.g. for requests creation, valid URL to product page on supported web can be used -- see below.