BookBatcher

BookBatcher – Fast, private audiobook packing Turn jumbled chapter files into a single, polished audiobook in just a few clicks. What it does - Merge to one file – Drop a folder of MP3 (or most common audio) tracks and get a single M4B -or- MP3 with gap-free playback. - Chapter markers from filenames – Each original track becomes a named chapter, so you can still skip between sections. - Best-effort metadata lookup – Click Lookup to pre-fill title, author, cover art and year from OpenLibrary; edit by hand if the hit isn’t perfect. - All-local processing – Conversion runs through the copy of FFmpeg and AtomicParsley bundled inside the app; no files or metadata ever leave your Mac. - Multi-core speed – Uses every core it can find, so big books finish proportionally faster on newer machines. - Drag-and-drop workflow – No Terminal, no scripts: drop folder → tweak details → hit Batch. Why you’ll love it - Uniform library: Every audiobook in the same tidy format, ready for Apple Books, Bound, BookPlayer and more. - Perfect for CD rips & podcast archives that arrive as dozens of files. - No ads, subscriptions, or data collection—ever. Works with macOS 12 Monterey or later, Apple-silicon and Intel.