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1. Convert AAC to Other Formats +
  1. 1.1 Convert MP4 to AAC
  2. 1.3 Convert AAC Files
2. Convert Other Formats to AAC +
  1. 2.1 Convert AAC to M4R
  2. 2.2 Convert AAC to MP4
90X faster speed to convert AAC files to any other video or audio format easily.

How to Convert MP4 to AAC Easily

by Christine Smith • 2024-01-11 10:28:11 • Proven solutions

When you are using your MP4 video files only for its audio track, converting it to an audio file will not only reduce the size but will also make it compatible with a host of music players and devices. To get the conversion done in a hassle-free manner, check the below-listed MP4 to AAC converter tools.

Part 1. The best way to convert MP4 to AAC recommended

The best way to convert your MP4 video files to AAC format is by using professional software like Wondershare UniConverter. This is a desktop-based tool that is compatible with all the latest Windows and Mac systems and supports over 1000 formats and devices for the conversion in lossless quality and with support to batch processing. There is a built-in editor that supports editing the file parameters and customize them. Additionally, you can even download, record, compress, and transfer the files using the software.

  • Allows lossless quality conversion in more than 1000 formats
  • Batch processing support at a super-fast speed.
  • Built-in editor to trim, crop, cut, add effects, and add watermark to the files.
  • Video recording, compression, transfer, and other additional features are supported.
  • Supported OS: Windows 10/8/7/XP/Vista, macOS 11 Big Sur, 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7.

Steps to convert MP4 to AAC using Wondershare UniConverter

Step 1 Add MP4 videos to the software.

Open the software, and from the Video Converter section, click on the add files button to load the local MP4 files to be converted. Multiple files, as well as files from the devices, can also be added.

 Add MP4 files to UniConverter

Step 2 Choose AAC as the target format.

At the Output Format tab, choose AAC from the Audio list as the output file. You also need to select the target file quality.

Choose AAC as the target format

Step 3 Convert AAC to MP4.

The folder on the system to save the converted file can be selected from the File Location tab. Click on the Start All button to proceed with the conversion process.

Convert AAC to MP4

Part 3. Other 4 ways to convert MP4 video files to AAC online

Enlisted below are the other 4 online tools for converting MP4 files to AAC.

1. CloudConvert

The MP4 files from Google Drive, Dropbox, OneDrive, Computer, and an online link can be added to this browser-based tool for conversion to key supported formats. Bitrate, codec, and volume can be edited using the tool, and there is also an option to trim the start and the end.



  • Add files from multiple sources.
  • Edit basic file parameters.
  • Save converted files to cloud storage.


  • Internet dependence.
  • Converted files have to be downloaded.

2. Zamzar

Files up to 50MB from your system or a link can be added to this online tool for conversion to popular formats. The interface is simple, where you just need to load the MP4 videos and select AAC as the desired target format. You can download the converted files to the computer or get them in the mail.



  • Simple interface.
  • Option to get the processed files through the mail.


  • The maximum file size limit is 50MB.
  • No editing options.

3. Convertio

Using Convertio, you can add the files from the cloud storage, the system, and the link for the process. The maximum supported file size is 100MB, and there is also support for file parameter change and cutting the unwanted parts. Converted files can be saved to the system or cloud as needed.



  • Add files from multiple sources.
  • It supports editing bitrate, volume, frequency, channel, and codec of the file.
  • Cut the file parts.


  • The file size limitation is 100MB.
  • Internet-dependent.

4. Online Convert

Use this browser tool to convert your MP4 videos on the local system, Google Drive, and Dropbox to AAC and other desired formats. Online files using their link can also be added. The program facilitates editing file parameters like bitrate, sample rate, and channel.

Online Convert


  • Edit file parameters.
  • Option to cut and normalize video.


  • A maximum of 3 files can be processed at a time.
  • Lack of additional features.


Online tools can work when you have limited files to be converted without any add-on functions. For high-quality conversion to use the software for several other features Wondershare UniConverter works as the best choice.

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Christine Smith

Christine Smith

chief Editor

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