mp4 to aac Converter

Convert your Audio, Video and other Files from one format to another online for free!

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Or drop files here. Max files size 1GB.

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The MPEG-4 Part 14 format, better known as MP4, is a multimedia container used to store digital audio and video. It can store other kinds of data, like still images and subtitles.


The Advanced Audio Coding is an audio format developed by Bell Labs, Dolby Laboratories, Microsoft, the Fraunhofer Society, and others. Its filename extension is .m4a.

Frequently Answered Questions

Is it safe to convert MP4 to AAC files?

Whenever you share something with the internet, one is always concerned about data theft. But we assure you that your sensitive data is completely safe with us.

Convertr holds multiple licenses allowing it to handle public data. The data is transferred over a secure connection, limiting hacker attacks.

The shared data is only kept when it is converted and deleted after the process. We show no strange advertisements on the site to avoid phishing attacks.

Besides, we also use secure connections between the website and the user computers. That means we make sure your device is safe from hacker attacks.

Can Windows 10 convert MP4 to AAC?

No version of Windows has any pre-installed software that converts files to a different format.

That means Windows 10 cannot convert MP4 to AAC itself. You must find a conversion software to do that. But as your system can be at risk when using third-party software, a better option is using an online converter.

For that purpose, we recommend using Convertr as it is fast, safe, and efficient.

Which is the best MP4 to AAC Converter?

When converting MP4 to AAC, Convertr is the best choice for you. We understand that MP4 files are large thus require a lot of time to upload. But with Convertr, you don't have to worry about that.

The upload speed at Convertr is lightning, and it converts bulky files within minutes. Convertr allows you to convert and upload multiple files at once. With Convertr's intelligent design, you don't need to sit and wait for hours to get your task done.

Once all the files are up, the conversion smoothly reduces the size and retains optimum quality.

Is MP4 better than AAC?

As MP4 is a video format and AAC is an audio format, we can't say one is better. But we can compare the compatibility of each format with different devices.

AAC is the most widely used audio format today. Google's YouTube music uses it; it is also the default audio format for all Apple devices. On the other hand, MP4 is a standard video format. From computers and cellphones to Web browsers and media players, everything can play MP4.

Each format has its purpose, so we can’t say MP4 is better than AAC. But in terms of support, MP4 takes the lead.

Why do I need to convert from MP4 to AAC?

There are plenty of reasons you would like to convert MP4 to AAC:

  • It saves you a lot of storage space on your computer as it consumes MBs instead of GBs.
  • MP4 to AAC conversion helps you to edit the videos better. It allows you to dissect the video from the audio. Later, you can compile the AAC file with the video, increasing the overall quality.
  • AAC is a better option for your Bluetooth speakers and home theaters too. With AAC, you will notice the change in quality.
  • The conversion allows you to keep the audio only, in case you don't need the video.

How to Convert MP4 Files to AAC?

Converting MP4 to AAC multimedia files is something you can easily do at Convertr. Our site counts with a user-friendly interface that everyone can use by practically just looking at it. That way, those with limited computing knowledge can perform file conversions by themselves without any help.

  1. Click on the "Choose files" button and select the files you want to convert, or simply drag and drop them directly on the site.
  2. Select AAC as the output format.
  3. Click on convert

And that's it. Your file will automatically be uploaded, and we will convert it to AAC format as quickly as possible. Then, you have to download it already converted.

For example, if you are trying to convert several gigabytes of MP4 content to AAC, it is normal to take some time.

Please note that the conversion will take less or more time, depending on the length of the file.