File centipede is an All-In-One internet file upload/download manager, BitTorrent Client, WebDAV client, FTP client, and SSH client. It is designed to be fast, customizable, and user-friendly. It supports multi-protocols and contains many useful auxiliary tools such as HTTP requester, file merge, and encoders. With the browser integration, you can download audio and videos from websites, even encrypted videos. (It's free with no ads)
Video DownloadHelper - Browser extension to download videos from the Web
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.
FlashGot - FlashGot is a browser extension for Mozilla Firefox that is designed to make it easy to download a whole batch of files in one go. The extension is open source and free to use, but it is no longer compatible with the most recent version of Firefox.
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.
ClipGrab - A friendly downloader for YouTube and other sites
Free Download Manager - It is a powerful modern download accelerator and organizer for Windows and Mac.