Great Downloader easy to use can convert into multiple file formats. Fast and impressive
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Video DownloadHelper - Browser extension to download videos from the Web
Open Streaming Platform - A self-hosted video streaming and recording server using Python, Flask and Nginx-RTMP.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Socialcam - Download Socialcam 2. 6. 1. The easiest way to capture and share videos. Socialcam is an app that's very similar to Vine in that it allows you to play, capture, and share short videos from your Android.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.