Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Video DownloadHelper - Browser extension to download videos from the Web
Autodesk DWG TrueView - Get a free DWG viewer to view, open, edit, and convert .dwg files, the native file format for AutoCAD files. DWG Trueview includes DWG TrueConvert.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Autodesk Design Review - Design Review lets you view, mark up, print, and track changes to 2D and 3D files.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
LiteCAD - Create, edit, view, and print 2D CAD drawings using the file formats: dxf, dwg, shp ;Download-Size...