Convert AAC to MP3

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convert . aac to . mp3

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AAC (Advanced Audio Coding) is a lossy audio format developed as the successor to MP3. At the same bitrate, AAC generally delivers slightly better sound quality than MP3. AAC is primarily used in the Apple ecosystem, as iTunes, iPhones and iPads, for example, use AAC as their standard format. As MP3 and, in particular, the LAME encoder have also continued to be developed, AAC and MP3 now exist side by side, with virtually identical characteristics.

When AAC was released in 1997, it was actually intended to replace MP3. The technology was more modern, the compression more efficient. However, AAC arrived a little too late; by that point, MP3 had already established itself. Even the term ‘MP3’ became synonymous with music files. Napster, the first portable MP3 players, and even the iPod used MP3 as their music format. Apple introduced AAC as the standard in the iTunes Store from 2003 onwards, but the iPod continues to support MP3 as well. Thus, the planned successor became a competitor that was never able to match the success of MP3. In particular, improvements to the LAME MP3 encoder ensured that MP3 was able to retain its position.

AAC and MP3 compared

	AAC	MP3
Year of development	1997	1993
Standard	MPEG-4	MPEG-1
Sound quality	slightly better at low bitrates	Equivalent from approx. 192 kbps
Popularity	Apple, YouTube, games consoles	Universal
Patents	Partially protected	Patent-free since 2017

Converting AAC to MP3 ensures compatibility even on older devices and with older software. If your programme or device cannot open the AAC file, converting it to MP3 is a good way to make the AAC file playable. Simply follow the instructions below to convert AAC to MP3.

3.5/5(5 votes)

Last updated on March 16, 2026 by Sören Ramspeck with the experience of more than 128,419,867 converted files since 2013.

How to convert AAC to MP3 online?

Upload AAC file Choose your AAC file with the "Choose File" Button, Drag & Drop or import it directly from Dropbox/Google Drive.
Choose target filetype MP3 is set as default target format. Change it if you need a different target filetype for your conversion.
Start Conversion Click "Start Converting!". Most files process in seconds, only the largest files may take a few minutes.
Download your MP3 file Download your finished MP3 file. Your files will be automatically deleted from our servers.

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Currently we support the following conversions with AAC files:

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Information about the extensions for the conversion from AAC to MP3

From: AAC

a modern audio format, in some cases more efficient than MP3

AAC stands for Advanced Audio Coding and is a lossy compression format for audio files. It often delivers better sound quality than MP3 at the same bitrate and is particularly efficient at lower bitrates. Today, AAC is the standard on Apple devices, …

File extension: .aac
More information and converters for AAC

To: MP3

universal, lossy audio format

MPEG-1 or MPEG-2 Audio Layer III, mostly known as mp3 or MP3, designates a format for coding digital audio data. MP3 still ranks among the most popular formats for storing audio data. In the early 80s, the German Fraunhofer Institut developed MP3 as …

File extension: .mp3
More information and converters for MP3