Congrats on being on the front page of HN ! Are you the Pierre Couy I met in Centrale Lyon ? We did a project together using D3.js for a pharmaceutical company. Valentin
You domain name confused me when I first saw it : uploader.win seems related to Windows at first sight.
Whereas your product has nothing to do with Windows.
Something like [catchy-unique-name]-uploader.[com/io/app] seems less misleading.