If you are a fan of Audible, you should know a lot about Audible’s AAX format for audiobooks, but you must know very little about AAXC. Actually, you may have discovered that Audible is now using the AAXC format.
But what exactly is Audible AAXC and why is Audible using this new format? Is it possible to download audible AAXC audiobooks in MP3 format for backup or playback on devices that don’t support Audible? In this article, we will tell you the best answer. You will easily convert AAXC to MP3.

- Part 1. What Is an AAXC File
- Part 2. Why Convert AAX to MP3
- Part 3. How to Convert AAXC to MP3
- Part 4. How to Convert AAXC to MP3 Online
- Part 5. FAQs about Audible AAXC
Part 1. What Is an AAXC File?
In short, the AAXC file extension was developed by Audible to help encrypt audiobooks.
Until June 20, 2019, all Audible books are saved in the AAX/AA format. After that, Audible.com decided to add an address copyright protection designed to prevent Audible files from being converted to regular audio formats.
As a result, since then, all audiobooks downloaded from the Audible app for Android and iOS are saved in AAXC. AAXC files cannot be played in other media players.
Then when you want to listen to AAXC files on some mobile devices, you’ll need an Audible app. That’s why many people want to convert AAXC to MP3 format in order to enjoy their audiobooks outside of the Audible.com app or their browser.
Part 2. Why Convert AAXC to MP3?
AAXC file format is not playable on devices like MP3 players. Therefore, it must be converted to a format such as MP3 to be compatible with a wide range of devices.
The music inside an MP3 file is stored as long strings of bits of zeros and ones. Additionally, there is an index card that has all the details of the music such as the genre, track name, and artist, among other details. This makes it easy for you to trace a track, in particular, to play or even edit the ID3 tags.
Many reasons would compel you to convert AAXC to MP3 format. MP3 file format is a compressed form easy to transfer and in usage. The data file in this form is compatible with different types of operating systems like Windows and Mac OS. Audiobooks can be played in any compatible player once you convert them to MP3.
- Low data size: A smaller file size lets you rip a large number of files onto a disc.
- Low cost: The distribution of your music or Audible audiobook is less expensive while in MP3 format.
- Online promotion: It’s easy for music companies and other individual artists to promote their music online.
- File sharing: MP3 is a bomb when it comes to file sharing. You can do this through a physical or an online medium.
- Reduced download time: The time you’ll take to download and upload an MP3 file is reduced to fewer minutes.
- Compatibility: MP3 files are highly compatible with several types of devices like CD players, Media players, and Apple iPods.
- ID3 tags storage: MP3 files also stores the genre, song title, artist name, and other metadata information.
Part 3. How to Convert AAXC to MP3: Best Way
If you want to convert your Audible AAXC files to MP3, you may need a professional tool. Unfortunately, if you have searched for Audible converters, you may find that there are many Audible AAX converters, but none of them is a specialized AAXC to MP3 converter. So, you may wonder: how to convert AAXC to AAX?
Actually, this is not necessary. You just need to purchase and download AAX/AA Audible books from the Audible app or Audible.com on the computer. Because audiobooks downloaded from Windows and Mac computers are still in AAX format.
Then you will be able to use AudKit Audible AAX Converter to convert AA/AAX to MP3. After downloading, you will get 100% lossless Audible audiobooks as MP3 files on your computer.
Not only MP3, but AudKit Audible Converter also supports various audio formats including FLAC, AAC, M4A, M4B, WMA, WAV, M4R, MKA, OGG, AIFF, etc. The conversion speed of the Windows version has reached 5X so you can batch convert your Audible audiobooks quickly.

Key Features of AudKit Audible Converter
- Convert AAX/AA to MP3, WAV, AAC, M4B, and others.
- Retains 100% ID3 tags and lossless quality from Audible
- Split Audible by chapters or segments or whatever you want
- Easy to use with an intuitive and streamlined user interface
After downloading the AudKit Audible Converter on your computer, you can follow the steps below to convert AAXC to MP3.
How to Convert AAX/AA Files to MP3: Step by Step
The AudKit software will convert your protected Audible audiobooks from AAX or AA to MP3 for playing on any device.
Step 1
Add Audible audiobooks to the converter
Step 1

To add Audible audiobooks, click the ‘Add Files’ icon in the AudKit app then select the downloaded audible AAX files. Your files will then be added to the AudKit main interface. You can also drag and drop the downloaded Audible files to the converter app window.
Step 2
Choose output format as MP3

The AAX audiobooks will then be loaded to the AudKit conversion window. To edit your files, click the ‘Edit’ icon and set the channel, sample rate, bit rate, audio codec, and many more. Besides, you can split the larger audiobooks into smaller chunks of files. Just click the ‘Editing’ icon that’s next to the Audiobook’s name and start the splitting process.
Step 3
Convert Audible audiobooks to MP3

Check that your settings are well selected then press the ‘Convert’ button. The AudKit software will then convert Audible AAX to MP3 within a short time. When all is done, click the default ‘Output folder’ to allocate your MP3 files. You can now play your Audible audiobooks on MP3 players and other devices.
Part 4. How to Convert AAXC to MP3 Online
If you don’t want to install extra apps, you can think about ACONVERT.com. It is an online tool to convert Audible AAXC to MP3. Simply load your Audible downloads to it and you can select multiple output audio formats including MP3, FLAC, WAV, AAC, MA4, etc. It also allows you to change the sample rate and bit rate.

How to Convert AAXC to MP3 Online by ACONVERT.com
Step 1. Visit the official website of ACONVERT.com.
Step 2. Select the Audio section from the left sidebar.
Step 3. Click the Choose File button to open your computer’s local folders. Select the folder that contains your Audible downloads and click on Open.
Step 4. Change the Target format to MP3.
Step 5. Click on the Convert Now button to convert AAXC to MP3 online.
Part 5. FAQs about Audible AAXC
We have selected some frequently asked questions about AAXC for your reference.
Q1. How do I open an AAXC file?
AAXC file is a unique audio format designed by Audible. So, it can only be opened and played on the Audible app for Android and iOS.
Q2. How to tell if an Audible audiobook is in AAXC format?
If you are using the latest Audible app (version 2.64.0 as of November 2020) for Android and iOS, your downloaded Audible audiobooks will be saved in AAXC format.
Q3. How do I convert Audible AAXC to MP3?
There isn’t a real AAXC to MP3 converter yet, but you can use AudKit Audible to MP3 Converter. Just download your Audible books from your computer, and then you can easily convert Audible AA/AAX to MP3.
The Bottom Line
Audible’s AAXC files prevent you from listening to Audible audiobooks on other media players. If you want to improve the compatibility of your downloaded Audible books, you may need to convert AAXC to MP3. the best tool, AudKit Audible Converter, can achieve this goal. You can simply download your Audible books from your computer and then use the AudKit software to convert Audible books to MP3. After that, you can play your favorite Audible audiobooks on other portable players.
4 replies on “Convert AAXC to MP3? Best Way!”
Note that each audiobook is not more available for downloada from site.
Whato should I do?
You can still download Audible AAX audiobooks on your computer. Then convert those AAX files to MP3 files then transfer to your mobile phone or any other player.
Doesn’t seem to convert aaxc type files. Doesn’t see them as aaxc, doesn’t convert if I change the extention to just aax. Am I missunderstanding?
Currently, AudKit AAX Converter only supports to convert AA/AAX files. Please open the Audible site via the browser on the computer. Then search for the book you need and use AudKit to convert them to MP3.