OpenAudible - OpenAudible Project Page
TunesKit iBook Copy for Mac - Easily remove DRM protection from Apple iBooks and copy DRM protected iBooks to DRM free ePub files.
DRmare Audio Converter - DRmare Audio Converter for Windows is a complete audio DRM removal tool designed to convert both protected audios, including Apple Music, Audible audiobooks, iTunes music, and common audios to MP3, WAC, FLAC, M4A, AAC, etc.
RoxyApps eBook Conversion Tool - Convert djvu, epub, fb2, lit, azw, lrf and other eBook files to txt, pdf, pdb, rtf and other formats
TuneFab Audible Converter - TuneFab Audible Converter is a cross-platform application that enables you to remove or bypass DRM protection from your audible eBooks.
AudFree Spotify Music Converter - Download Spotify songs as MP3 for offline listening on any device even without premium subscription.