Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Video DownloadHelper - Browser extension to download videos from the Web
BlankPage - Stay motivated to write, and finish your story
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Novelize - Novelize is an online novel writing app designed to keep authors on track.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
Manuskript - Open-source tool for writers.