download and decrypt an entire Audible library. Epubor Audible Converter : A paid but user-friendly option that converts protected files to plain M4B or MP3 at high speeds while retaining chapter markers . OpenAudible : A cross-platform manager (now paid) that specializes in importing and converting Audible's proprietary formats to DRM-free files. FFmpeg : For the tech-savvy, this free command-line tool can
Tech-savvy users comfortable with command-line tools or third-party plugins. remove drm from m4b
(Excellent for archivists, minus points for legality gray area) download and decrypt an entire Audible library