Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Vidmore Video Enhancer - Vidmore Video Enhancer provides one-stop solutions for you to enhance video quality, upscale resolution from SD to HD, optimize brightness and contrast, remove noise, reduce shaking and more on your Windows & Mac.
Video DownloadHelper - Browser extension to download videos from the Web
Aiseesoft Video Converter Ultimate - Aiseesoft Video Converter Ultimate is professional and powerful video software to enhance video, convert videos/DVDs and videos
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
AnyMP4 DVD Converter - AnyMP4 DVD Converter can convert DVD/video to any popular video/audio format like MP4/MOV/AVI/FLV/MKV/MPEG, MP3/FLAC/M4A and more.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.