Top 4 Free AAX to MP3 Converter for Online & Offline Use

By Dakota Jones

Updated on September 11, 2020

Why are you looking for a free AAX to MP3 converter? As one of the biggest and most famous audiobook providers, Audible offers more than 200,000 audiobooks to audiobook lovers all over the world. With the use of special AAX formats, Audible audiobooks are only playable within the Audible app or on the specialized devices. To make your audiobook life easier and simpler, it is necessary to break the limit by converting AAX to MP3.

With this purpose in mind, we found and compared almost all of the free AAX to MP3 converter in the market and pick out the top 4 best free AAX to MP3 converters to help you convert AAX to MP3 online and offline. Please read this review carefully to figure out which one suits you the most.

free aax to mp3 converter

1. AudKit Audible AAX Converter

Compatibility: Windows & Mac

Price: Free Trial / Premium $34.95


  • Runs at 100X or faster speed during the conversion.
  • Freely customize output settings for Audible books.
  • Auto-split audiobook by chapters or by segments.
  • Preserve 100% lossless quality and raw ID3 tags.


  • The free trial version enables users to convert the first 1/3 content of each Audible file only.

Built-in the latest converting techniques, AudKit Audible AAX to MP3 Converter deserves more attention in 2020. This potential best free AAX to MP3 converter provides with up to 100X converting speed, which easily finishes converting a 20-hour audiobook in only 10 minutes. In the meanwhile, an entire audiobook will be automatically divided into small sections according to the original chapters.

Based on the humanized design, the output settings of AudKit Audible Converter are open-accessed. Users can customize the output formats, bit rate, sample rate, splitting ways, ID3 tags, volume, speed, pitch, etc. as they like. For example, there are multiple output formats for choices, including MP3, M4A, AAC, AC3, OGG, AIFF, APE, FLAC, WAV, WMA, M4B, M4R, MKA, AU, and more. It is fair to say that AudKit Audible AA/AAX Converter is almost an almighty converter for Audible books that should meet everyone’s expectations.

audkit audible converter

Key Features of AudKit Audible Converter

  • Remove digital protection from Audible AAX audiobooks
  • Download Audible files for playing without opening Audible
  • Convert Audible books to MP3 and multiple audio formats
  • Auto-cut Audible files relying on chapters, hours, etc.

Quick Tutorial: Convert AAX Books to MP3 Online by AudKit Audible AAX Converter

Step 1. Download and import Audible audiobooks to AudKit software.

Step 2. Reset the output settings for your Audible books in AudKit’s setting page.

Step 3. Click ‘Convert’ to convert Audible AAX to MP3 or other common files.

Tip: The free trial version of AudKit supports users to convert the first 1/3 part for each Audible book. To convert a whole Audible book without limits, you need to upgrade to the Premium version.

2. AudFree Audiobook Converter

Compatibility: Windows & Mac

Price: Free Trial / Premium $39.95


  • Support Audible audiobooks and Apple audiobooks.
  • Convert Audible audiobooks to unlimited files.
  • Simple interface for anyone to use with ease.


  • Users have to install and use iTunes.

AudFree Audiobook Converter allows users to convert Audible AAX files to 6 main audio formats: MP3, AAC, M4A, M4B, WAV, and FLAC. With the mature converting technology, the audio quality of the converted audiobooks basically keeps as same as the original one. Users are also available to manually reset the bit rate, sample rate, volume, cutting ways, and other output parameters.

Thanks to the powerful conversion features, AudFree Audiobook Converter is able to convert not only Audible audiobooks and but also Apple audiobooks. After uploading Audible books to the iTunes library, users can manage and convert Audible audiobooks and Apple audiobooks together in AudFree.

Simple Tutorial: Convert AAX Books to MP3 Online by AudFree Audiobook Converter

Step 1. Download and install iTunes on your computer.

Step 2. Make sure you have downloaded all Audible audiobooks.

Step 3. Add the downloaded Audible books to iTunes.

Step 4. Open AudFree and load Audible files from iTunes.

Step 5. Customize the output settings for Audible books in AudFree.

Step 6. Hit ‘Convert’ to convert Audible AAX to any output format.

3. OpenAudible

Compatibility: Windows & Mac

Price: Free Trial / Premium $12

OpenAudible is a comprehensive software for Audible lovers, which is designed to convert, manage, and view Audible books on the desktop. With the integration of the Audible account, users can intuitively view and directly manage their Audible library in OpenAudible.

During the conversion, OpenAudible can also separate an entire audiobook into chapters by using the ‘Split by chapter’ feature. Now let’s check the instructions on how to convert AAX to MP3 online free by using OpenAudible.

Step 1. Visit the official site to download and install OpenAudible on the computer.

Step 2. After installing it, start to connect to your Audible account.

Step 3. Activate the OpenAudible app from the desktop.

Step 4. Choose the ‘Connect to Audible’ tab.

Step 5. Type into the username and password of your Audible account.

Step 6. The app will automatically load the first page of your Audible library then show it to you.

4. InAudible

Compatibility: Windows

Price: Free


  • A total freeware


  • Not available to Mac
  • Still in Beta version
  • No technical support

InAudible is a free AAX to MP3 converter for Audible books’ conversion. With the use of InAudible, you are able to convert AAX to MP3, WAV, FLAC, and several common audio formats. The raw metadata will be saved in the converted book files, including title, cover, artist, chapters, and so forth.

Being similar to the Audible converters mentioned above, InAudible can also cut an entire audiobook into small segments by original chapters. Since it is only in the beta stage, users are needed to install and use both FFmpeg and inaudible-NG’s tables. Then to start the conversion of converting AAX to MP3.

In Conclusion

After comparing the top 4 online AAX to MP3 converter, have you found the most suitable one for you?

To get the best sound quality of Audible MP3 books at the highest converting speed, AudKit Audible AAX Converter is your first choice. If you would like to convert both Audible books and Apple audiobooks, AudFree would help you a lot. For direct management of Audible resources, maybe you can try OpenAudible. If you care more about the price, select InAudible as a start.

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