The guide below shows you 2 ways to convert AAC to MP3 on OS X. Just go check it out if you are currently looking for an AAC to MP3 Converter Mac version or a method to convert AAC to MP3 Mac.

Use iTunes on Mac OS X to Convert AAC to MP3

To convert AAC to MP3 Mac OS has one specific app pre-installed. To make things simplier you can make full use of the applications that you already have on your Mac OS X. And iTunes is exactly the app we need here on OS X.

iTunes can not only serve as a media player, it can also work as an audio converter, you can actually convert AAC to MP3 using iTunes on Mac OS. But Apple didn’t make this practical function that easy for users to get access to as it should be.

The content below will guide you through the process of using iTunes as an AAC to MP3 Converter Mac to convert AAC to MP3Mac OS.

Step 1: Open iTunes, choose iTunes>Preferences on the menu bar.

Step 2: In General section, click Import Settings, and then click Import Using. Choose MP3 Encoder from the pop-up menu.

Step 3: In your music library, choose the AAC format files you want to convert and click File>Create New Version>Create MP3 Version, and iTunes would start converting AAC to MP3.

Use Professional Audio Converter on Mac to Convert AAC to MP3

Here’s another way of converting AAC to MP3 Mac users could try. You can use Leawo Video Converter for Mac, a professional video and audio converting application on Mac OS and one of the best AAC to MP3 converter Mac users could find.

The audio format Leawo Video Converter for Mac supports include: FLAC, AAC, AC3, AIFF, AMR, M4A, MP2, MP3, OGG, RA, AU, WAV, WMA, MKA for import and output.

And other than converting audios, it also supports:

  • Converting videos between all popular formats.
  • Abundant video editing features like Trim, Crop, Watermark and Effect.
  • Converting 2D videos into 3D.


The guide below would show you the whole process of using Leawo Video Converter for Mac to convert AAC to MP3 Mac.

Step 1: Open the Converter on OS X, click Video Converter, and then click Add File to add AAC file to the interface of the Converter. Or you can do it by directly dragging source AAC files to the interface.

Step 2: On the left side of the green Convert button, there’s a button which allows you to get access to the Profile and Profile Setting panel, click it to call out a drop-down menu and click Change to enter the Profile panel. Go to Format>Common Audio and set MP3 as the default output format.

Load source files

Choose format

Step 3: On the aforementioned drop-down menu, click Edit to enter the Profile Settings panel where you can set the Audio Codec, BitRate, Sample Rate and Channel.

Step 4: Go back to the interface of the Converter, click the green Convert button and a sidebar would show up, set the directory for the output file on the sidebar. To start the Mac AAC to MP3 conversion click the Convert button at the bottom of the sidebar.

Set detailed parameters
Start converting

Below is the video guide of using Leawo Video Converter to convert videos and audios. The video is recorded on Windows but the procedure of converting audio and video on Mac OS X is basically the same as on Windows, so you can still use it to guide you through the converting process.