Mid-2012 there were complaints that JDownloader's installer added adware without the user's consent. The German online magazine, designated it 'newcomer of the year' in 2009, after it ranked among the top 50 most downloaded applications, with over half a million downloads in a year.
In December 2009 the program's website was in the top 1000 visited websites of Spain. Some parts, but not all, of JDownloader are open-source. JDownloader supports the use of premium accounts. JDownloader is a download manager, written in Java, which allows automatic download of groups of files from one-click hosting sites. GNU GPLv3 (but partly closed-source) (citation?)
