Free JDownloader Alternatives for Windows
There are many alternatives to JDownloader for Windows if you are looking to replace it. The most popular Windows alternative is 
DownThemAll, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to JDownloader and loads of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to JDownloader are 
Internet Download Manager (Paid), 
uGet (Free, Open Source), 
Free Download Manager (Free) and 
Mipony (Free).
- Integrity Downloader is a versatile Internet-based file downloader program which emphasizes security aspects.
- WackGet is a simple, lightweight download manager.
Discontinued
since 2012, there is no more update.
- Free • Open Source
- Windows
- PortableApps.com
- The plugin by default supports download of most common file types.