Here's a tiny graphical download manager built on Qt.
From its readme file;

Basic features

• Increases download speeds (It just does!).
• Concurrent file downloading.
• Safe Pause/Resume On Files
• Multilingual

Languages
yoDownet has been translated into below languages:

• English
• Estonian
• Persian
• Turkish
• Vietnamese

Translating is handled by transifex: "transifex.com/projects/p/yodownet":https://www.transifex.com/projects/p/yodownet/

Available Packages

• Arch Linux
• Frugalware Linux
• Haikuware
• OS/2

License
yoDownet is released under GPLv3. Free and OpenSource ;)

Any feedback is welcome ;)

Resources

• "SourceForge homepage":http://sf.net/p/yodownet/
• "Blog":https://sourceforge.net/p/yodownet/blog/
• "Github repo":https://github.com/Alir3z4/yoDownet
• "Issue tracker":https://github.com/Alir3z4/yoDownet/issues
• "Documentation":https://github.com/Alir3z4/yoDownet/wiki
• "Translations":https://www.transifex.com/projects/p/yodownet/
• "Mailing list":https://sourceforge.net/p/yodownet/mailman/
• "Source code archive":https://sourceforge.net/projects/yodownet/files/sources/