JDownloader is a a java-based tool that completely automates the downloading process. It can be very helpful for websites such as Rapidshare.com or Megaupload.com for both premium and free users.
JDownloader simplifies downloading files from One-Click-Hosters like Rapidshare.com or Megaupload.com - not only for users with a premium account but also for users who don't pay. The most important, noticeable change is that JDownloader 0.7 (7.569) is a lot faster than the previous versions. Another interesting change is that now it supports anti-captcha for more than 60 websites.