Apprentice Alf's DeDRM Tools - Everything you ever wanted to know about DRM and ebooks, but were afraid to ask.
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.
DRMBuster - DRMBuster is a powerful all-in-one audio and video conversion software for any kind of purchased or legally obtained music and video.
DRmare Spotify Music Converter - DRmare Spotify Music Converter is designed to download songs and playlists from Spotify to MP3, FLAC, MAV and other audio formats for playing on any device offline.
AudFree Spotify Music Converter - Download Spotify songs as MP3 for offline listening on any device even without premium subscription.
Transcoder Audio Edition - Audio converter for Linux, Audio transcoder for Linux