Great Downloader easy to use can convert into multiple file formats. Fast and impressive
ContextCapture - Acute3D develops breakthrough photogrammetry software solutions to automatically turn photos into photorealistic high resolution 3D models
Video DownloadHelper - Browser extension to download videos from the Web
Pix4Dmapper - Photogrammetry software for professional drone-based mapping, purely from images.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Meshroom - Meshroom is a free, open-source 3D Reconstruction Software based on the AliceVision framework.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.