Free Online MP4 to AAC Converter

Extract audio from your MP4 file using our fast and free MP4 to AAC converter. Use our MP4 ripping tool to separate out the audio track from your uploaded MP4, which can then be downloaded as an independent AAC file. You can also batch rip MP4 files with our batch MP4 to AAC converter, where you can upload as many as 20 files at a time.

Select File(s)

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your MP4 file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted MP4 file before this time.

Click the button above and select the MP4 video files you want to rip the audio from. Once selected, you can alter the bitrate of the generated AAC file by clicking button if you want to. The default settings will leave the audio quality unchanged.

How to Convert your MP4 to AAC Online?

Here are two simple steps to convert your MP4 to AAC using our fast and free MP4 converter tool.

Upload your MP4 file

Click the "Upload a MP4 File" button, then select a MP4 to upload. The maximum file size is 100MB.

Download your AAC

Click the download link to receive your AAC file.

Frequently Asked Questions

How can I convert my MP4 file to AAC?

First, click the "Upload..." button and select your MP4 file to upload. Your MP4 file will be uploaded to our servers. When the MP4 to AAC conversion has completed, you can download your AAC file right away.

How long does it take to convert my MP4 to AAC?

We aim to process all MP4 to AAC conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files, so please be patient.

How accurate is the MP4 to AAC conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development, with new features being added every week.

Can I extract the audio from my MP4 file?

Yes. When you have uploaded your MP4 file, the audio will be extracted and saved to your AAC file.

File format information for MP4 and AAC

Extension	MP4
Full Name	MPEG-4
Type	Video
Mime Type	video/mp4
Format	Binary

An MP4 file is a modern standard format for storing high-quality motion video in a highly compact and efficient file size. The specific compression algorithm used within an MP4 file can vary from file to file; however, they all enable what would otherwise be a large amount of uncompressed data to be reduced to a fraction of the original size with little or no noticeable difference in playback quality.

Due to their widespread support, MP4 files can be loaded into most video editing applications and played with most video playback software with no additional drivers. Most video sharing sites, such as YouTube, support MP4 as a format when uploading, and most tablets and smart phones can record in the MP4 format.

Audio stored within an MP4 file is usually stored in the MP3 format, taking advantage of that format's high quality and compression capabilities.

Extension	AAC
Full Name	Advanced Audio Coding
Type	Audio
Mime Type	audio/aac
Format	Binary

An AAC file is a highly efficient and modern format for storing audio data. Its intention is to improve on existing formats such as MP3 by introducing a more effective compression algorithm while at the same time preserving the quality of the original audio data.

This improved efficiency has meant the AAC format has become widely adopted within the fields of digital music, audio books, and other online audio services. The compression outperforms other comparable audio formats while providing similar quality at reduced bit rates.

The emergence of AAC as an alternative audio file format, along with its adoption by many big names in the industry, has meant support for the format in both the audio editing and playback arenas has gained significant traction.

Information for converting from MP4 to AAC

The MP4 video to audio converter will extract (rip) the audio track from your MP4 file and convert the audio data to the AAC format using the high-quality settings ready for download.