Great Downloader easy to use can convert into multiple file formats. Fast and impressive
aTube Catcher - aTube Catcher also can burn in DVD/VCD your videos without use any other third party software.
Video DownloadHelper - Browser extension to download videos from the Web
WebVideoCap - WebVideoCap is a very small program that will let you save the .
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
RTMPExplorer - RTMPExplorer is a GUI for RTMPDump.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.