MP4 to AAC Converter

Convert MP4 to AAC online, free and secure.

How to Convert MP4 to AAC (Step-by-Step)

  1. 1

    Select or Drag your File

    Click the "Choose Files" button to browse your folders, or simply drag and drop your MP4 file directly onto this page.

  2. 2

    Choose AAC as Output

    Verify that your target format is set to AAC.

  3. 3

    Local Conversion

    Click "Convert." Your file is processed entirely in your browser's memory—no data is uploaded to our servers.

  4. 4

    Instant Save

    Once finished, your AAC file will be ready for immediate save.

Pro-Tip: You can drag multiple files at once if you are doing a batch conversion!

MP4

MP4 is the world's most popular digital multimedia container format. It is used to store video, audio, and subtitles, offering universal compatibility across almost all devices and platforms.

AAC

AAC is a lossy audio compression format designed to be the successor to MP3. It generally achieves better sound quality than MP3 at the same bit rate.