Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Video DownloadHelper - Browser extension to download videos from the Web
Sendlane - Marketing automation and campaign management solution
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
CS-Cart Multi-Vendor - On-premises eCommerce marketplace builder
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
SmartEngage - Cross-channel autoresponder for marketing automation