Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Todo by Appigo - What sets Todo Cloud apart from your run-of-the-mill to-do and task-list apps is that it is straight-up powerful. It's time to get things done.
Video DownloadHelper - Browser extension to download videos from the Web
Laverna - Laverna is a JavaScript note taking application with Markdown editor and encryption support.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Notezilla - Colorful & powerful sticky notes app for Windows & Phones.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.