Audiobook Converter Pro
Audiobook M4b to mp3/aac/flac
Only for Mac
Free · In‑App Purchases
Mac
Easily convert M4B audiobooks to MP3, AAC,FLAC or OPUS without losing chapters or metadata.
Designed for accuracy, speed, and privacy with fully offline processing.
Transform your audiobook library into flexible, device-ready formats — all on your Mac.
Audiobook Converter Pro is a powerful, native macOS app designed to convert DRM-free .m4b audiobooks into MP3, AAC,FLAC or OPUS while preserving chapters, metadata, and structure. Whether you're converting a single title or managing a growing collection, every workflow is built for speed, clarity, and control.
Why Audiobook Converter Pro stands out
• Convert DRM-free .m4b audiobooks to MP3, AAC,FLAC or OPUS
• Preserve chapter structure for seamless navigation
• For chapter structure without metadata (m4b) auto silence detection and advanced silence chapter inference mode available.
• Inspect detailed audio info: codec, bitrate, sample rate
• Flexible file handling: Skip, Replace, or Auto-Rename
• Custom naming templates and output destination control
• Smart AAC passthrough for fast, lossless-compatible exports
• Clean, native macOS interface with Light, Dark, and System themes
Built for real audiobook workflows
Convert
Import a single file or scan folders. Track live progress and export your audiobook as:
Chapter-based tracks
Or a single merged file (Full Pro)
Jobs
A dedicated workspace to:
Review recent conversions
Inspect per-file results
Retry failed items
Re-run skipped or existing files without rebuilding your queue
Watch Folder
Automate your workflow:
Monitor folders for new .m4b files
Queue items for review or auto-convert in the background
Rescan existing libraries with ease
Powerful automation & control
• Drag-and-drop imports with queue management
• Parallel processing for faster conversions (Full Pro)
• Background automation with Watch Folder profiles
• Organized outputs with consistent naming and structure
Upgrade Options
Free
Convert one .m4b audiobook to MP3
Sequential chapter processing
3-chapter split-output trial
Single Pro
Full single-title MP3 conversion
Additional bitrate options
Simple, focused workflow
Full Pro
Batch conversion & parallel processing
Merge into a single audiobook file
AAC, FLAC, OPUS export
Watch Folder automation
Advanced workflow control
New: OPUS output (Full Pro)
- Convert audiobooks to OPUS: small files that still sound good for speech.
- Single File mode keeps your chapters as navigable markers and keeps the cover art. Split by Chapters writes one .opus file per
chapter.
- OPUS has its own settings: bitrate from 24 to 96 kbps (default 32), a mono option, and optional cover-art optimisation.
- How chapters and covers display depends on your player.
Important
Audiobook Converter Pro works with DRM-free .m4b files only.
Watch Folder automation and Auto Convert require Full Pro.
Why choose Audiobook Converter Pro?
Unlike basic converters, Audiobook Converter Pro is designed around how audiobook listeners actually manage their libraries — combining precision, automation, and native macOS performance into one streamlined experience.
Convert once, organize forever, and enjoy your audiobooks anywhere.
Terms of Use
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
- This app hasn’t received enough ratings or reviews to display an overview.
New: OPUS output (Full Pro)
- Convert audiobooks to OPUS: small files that still sound good for speech.
- Single File mode keeps your chapters as navigable markers and keeps the cover art. Split by Chapters writes one .opus file per
chapter.
- OPUS has its own settings: bitrate from 24 to 96 kbps (default 32), a mono option, and optional cover-art optimisation.
- How chapters and covers display depends on your player.
Improvements
- MP3 and AAC now encode at exactly the bitrate you choose.
- More consistent tags across all formats.
- More reliable cancel, retry and crash recovery.
The developer, OKGONZ, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Anoop Menon
- Size
- 19.1 MB
- Category
- Productivity
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Pro Monthly $4.99
- Single File -License $4.99
- Full Pro License $19.99
- Copyright
- © Indie4Tune Software
