Internet Download Manager - Internet Download Manager is an application that is designed to make downloading, organizing and storing your files a whole lot easier. If you are like many people, you might download a lot of files from the internet on a daily basis.
Neat Download Manager for Mac - Very Lightweight and handy DM for Mac(and Windows) with perfect browser integration and easy video downloading features.Really worths a check.
Free Download Manager - It is a powerful modern download accelerator and organizer for Windows and Mac.
Persepolis Download Manager - Persepolis Download Manager is a GUI for aria2.
JDownloader - JDownloader is a free downloading tool that enables you to download files from over a hundred hosting sites. The tool is compatible with Linux, Mac and Windows operating systems. Read more about JDownloader.
Folx - Folx is a simple yet powerful download manager and torrent client for Mac OS X.