AAC to MP4 Converter

Convert AAC to MP4 format online for free. No account required.
Upload your fileClick Choose File button to get started or drag and drop files to upload.
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What is AAC?

AAC stands for Advanced Audio Coding and it’s a lossy audio file format (meaning it loses some quality when compressed). AAC was designed to be a better version of MP3, by achieving higher sound quality at the same bitrate. AAC is often used as the default file format for the iTunes Store, Apple Music, iPhone and PlayStation.

AAC is compatible with several mobile devices including Nokia, Blackberry, Android and iPhone. It also plays in major media players such as VLC, Media Player Classic (MPC-HC), Windows Media Player and many others.

What is MP4?

MP4 is one of the most widely used video file formats. You can upload MP4 videos to popular social media sites like YouTube, Instagram, TikTok, Twitter and Facebook. Media players like Windows Media Player, VLC, QuickTime, iPhone, iPad and Android are also compatible with MP4 video files.

MP4s are popular not only for their compatibility with most devices but also for their ability to hold high-resolution videos without taking up much storage space. MP4 stands for MPEG4, and an MP4 file can contain video, audio, images and subtitles.

Frequently Asked Questions

How to convert AAC to MP4 online?

  1. Choose a AAC file from your computer or drag and drop it into Restream’s video converter.
  2. Select Convert and the converter will start processing.
  3. Download your MP4 file when it’s ready.

Will my file lose quality when I convert AAC to MP4?

Depending on which file type you’re starting with, you might lose a little bit of quality when converting to MP4, but it’s such a small amount that it’s not noticeable.

Supported file formats


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