How to convert Audible (AAX) to MP3
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Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
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Convert Audible (AAX) to MP3
NexMedia converts Audible (AAX) to MP3 on its own servers. Processing time depends on the file size and how busy the queue is.
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Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About Audible (AAX)
AAX is the audiobook format of Audible: AAC audio in an MP4-style container, encrypted with Audible's DRM and tied to the buyer's account.
Audiobooks downloaded from Audible.
AAX files are DRM-protected, and DRM-protected files cannot be converted here.
Convert AAX to MP3 online free, no account required — MP3 is a universally supported lossy audio format.
Change AAX to MP3 without losing quality — convert AAX to MP3 free in your browser.
Why won’t my AAX audiobook play outside the Audible app? Audible protects the files with DRM, so they only open in authorised apps — that protection is exactly why DRM-protected audiobooks cannot be converted here.
About MP3
MP3 (MPEG-1 Audio Layer III) is a lossy audio format from the early 1990s. It removes the sound listeners are least likely to notice, typically at 128 to 320 kbit/s.
It plays on virtually every device and app, which makes it the default for music files, podcasts and audiobooks.
MP3 tops out at 320 kbit/s and two channels, and every re-encode removes a little more detail.
Why convert music to MP3? Every device, car stereo and app made in the last 25 years plays it, so nothing and nobody is left out.
What changes when you convert AAX to MP3
- The audio is decoded and re-encoded as MP3 at the default settings, so the result is close to the AAX but not bit-identical.
- AAX and MP3 are both lossy formats, so this conversion adds a second round of lossy compression; keep the original AAX if you may need the best quality later.
- AAX files can carry DRM copy protection; protected files are detected and refused, because copy protection is never removed.
Settings you can change
Before you convert AAX to MP3, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted MP3 file is kept for 2 hours, then deleted.
AAX to MP3: questions and answers
Does converting AAX to MP3 reduce quality?
The audio is decoded and re-encoded as MP3 at the default settings, so the result is close to the AAX but not bit-identical. AAX and MP3 are both lossy formats, so this conversion adds a second round of lossy compression; keep the original AAX if you may need the best quality later.
What is the difference between AAX and MP3?
AAX is Audible's DRM-protected audiobook format. MP3 is a universally supported lossy audio format.
Can I change the settings when converting AAX to MP3?
Before you convert AAX to MP3, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert AAX to MP3?
No. You can convert AAX to MP3 without an account; signing in raises the file-size and daily limits.
How long is my converted MP3 file kept?
The MP3 file you convert from AAX is kept for 2 hours, then deleted automatically.
My AAX is already lossy — does the MP3 lose even more?
AAX and MP3 are both lossy formats, so this conversion adds a second round of lossy compression; keep the original AAX if you may need the best quality later.
What happens if my AAX file is copy-protected?
AAX files can carry DRM copy protection; protected files are detected and refused, because copy protection is never removed.