Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Spotify Downloader - Download tracks, albums and playlists from Spotify instantly.
Video DownloadHelper - Browser extension to download videos from the Web
SpotifyDown - A web site where you can download Spotify music for free.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Sidify Music Converter - Sidify Music Converter for Spotify is a popular tool used to convert Spotify music to MP3/AAC/WAV/FLAC/AIFF/ALAC. It keeps original audio quality and ID3 tags after conversion.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.