Click the "Select File" button above, and choose your AA file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert AA to another file type
The converter easily converts your AA audiobooks to various formats - free and online. No Audible / 7-Zip or or other Audio software needed.
AA to MP3
AA to WAV
AA to AAC
AA to FLAC
AA to OGG
AA to WMA
AA to AIFF
AA to OPUS
AA to OGV
AA to M4V
AA to WEBP
AA to SOX
Convert a file to AA
To convert other file formats to the "Audiobook or Archive Segment" file type, you need software like Audible / 7-Zip or a similar tool.
About AA files
The .AA file extension has two distinct, common uses. The most recognized is the Audible Audiobook File, a proprietary audio format developed by Audible (owned by Amazon). These files wrap standard audio in a DRM (Digital Rights Management) container, locking playback to authorized apps like the Audible app or Apple iTunes. The second major use is as a split compressed archive or generic split file segment. Utilities like GNU split or 7-Zip use extensions like .aa, ab, ac to divide massive files into smaller chunks for easier network transfer or storage. Waves Audio also uses this format for large split installer archives. Both variants present massive usability problems. The Audible .AA format is severely restricted by DRM, making it impossible to play on standard media players, open-source software, or older devices. It deliberately forces users into a closed ecosystem. Split archives are notoriously annoying because you must have all parts in the exact same directory to reassemble or extract the contents; a single missing .aa or ab file corrupts the entire dataset. For audio, you need to convert .AA to MP3 or M4B for universal playback. For split archives, the goal is merging parts back into the original file, such as a single ZIP or GZ. Drag and drop your file here to analyze and convert it securely right in your browser. We will identify if your .AA is an audio track or an archive chunk and help you process it.
Use Convert.Guru to open and convert your AA file.
If you want to convert AA file to DNA, AAA, USB or M4A, you can use Audible / 7-Zip or similar software from the "DRM Audio / Split Archive" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to AA, try Audible / 7-Zip or another comparable tool in the "DRM Audio / Split Archive" category.
The AA Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our AA converter.