Audiobook Converter
Convert MP3 to M4B & M4B to MP3 with ease
What is Audiobook Converter? Complete Overview
Audiobook Converter is a simple, browser-based tool designed to convert audiobooks between MP3 and M4B formats effortlessly. It allows users to merge multiple MP3 files into a single, chaptered M4B file or split an M4B file back into individual MP3s. The tool is perfect for audiobook enthusiasts, professionals, and anyone who needs to manage their audiobook files without dealing with complex software. With no installation required and a user-friendly drag-and-drop interface, Audiobook Converter makes the process quick and hassle-free. Over 1,300 audiobooks have been converted using this tool, showcasing its reliability and popularity.
Audiobook Converter Interface & Screenshots

Audiobook Converter Official screenshot of the tool interface
What Can Audiobook Converter Do? Key Features
Automatic Chapters
The tool automatically converts your file names into audiobook chapters, eliminating the need for manual editing or additional steps. This feature ensures that your audiobook is well-organized and easy to navigate.
Two-Way Conversion
Audiobook Converter supports both merging MP3s into a single M4B file and splitting an M4B back into separate MP3 files. This flexibility allows users to switch between formats based on their needs.
Pristine Audio Quality
The tool preserves the original audio quality without unnecessary re-compression, ensuring that your audiobook sounds crisp and clear, just like the source files.
No Installation Required
Being browser-based, Audiobook Converter requires no software installation. Users can start converting their audiobooks immediately by simply visiting the website.
User-Friendly Interface
With a drag-and-drop interface and straightforward steps, the tool is designed to be intuitive and easy to use, even for those with minimal technical knowledge.
Best Audiobook Converter Use Cases & Applications
Creating a Chaptered Audiobook
Users with a collection of MP3 files representing different chapters of an audiobook can merge them into a single M4B file with automatic chapter markers, making it easier to navigate.
Extracting Chapters from an M4B
Users who need individual MP3 files from an M4B audiobook can split the file back into separate MP3s, useful for editing or sharing specific chapters.
Preserving Audio Quality
Audiophiles and professionals who prioritize audio quality can use the tool to convert files without losing any of the original sound fidelity.
How to Use Audiobook Converter: Step-by-Step Guide
Visit the Audiobook Converter website and drag and drop your MP3 or M4B files into the upload area, or click 'Upload Files' to select them manually.
Wait for the tool to process your files. The conversion will start automatically, and you can monitor the progress.
Once the conversion is complete, download your newly converted audiobook file in the desired format (M4B or MP3).
Audiobook Converter Pros and Cons: Honest Review
Pros
Considerations
Is Audiobook Converter Worth It? FAQ & Reviews
Each conversion costs $1.50, with simple one-time payments and no hidden fees.
The conversion time depends on the file size and your internet speed, but it is generally quick and efficient.
Your files are processed securely, and you can download the converted files immediately. The tool does not store your files permanently.
M4B is an audiobook format that supports chapter markers and bookmarking, while MP3 is a general audio format. M4B is often preferred for audiobooks due to these features.
If your conversion fails or you're not satisfied, you can contact support for assistance or a possible refund.