AAC to MP3 Converter

Select files for conversion or just drag and drop them to the upload area

How to convert AAC files to MP3 online?

Step 1.

Upload AAC-file

Click "Choose File" button to select a aac file on your computer. AAC file size can be up to 50 Mb.
Step 2.

Convert AAC to MP3

Click "Convert" button to start conversion.
Step 3.

Download your MP3

Let the file convert and you can download your MP3 file right afterwards.

Information about AAC and MP3 file formats

Name AAC MP3
Full name AAC - Advanced Audio Coding MP3 - MPEG-1 or MPEG-2 Audio Layer III
File extension .aac .mp3
MIME type audio/aac audio/mpeg, audio/MPA, audio/mpa-robust
Developed by Bell Labs, Fraunhofer Institute etc. Fraunhofer Institute
Type of format Audio compression format Digital audio
Description Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications. MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio which uses a form of lossy data compression. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players.
Technical details AAC supports inclusion of 48 full-bandwidth audio channels in one stream plus 16 low frequency effects channels, up to 16 "coupling" or dialog channels, and up to 16 data streams. The quality for stereo is satisfactory to modest requirements at 96 kbit/s in joint stereo mode; however, hi-fi transparency demands data rates of at least 128 kbit/s. The use of lossy compression is designed to greatly reduce the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio. An MP3 file that is created using the setting of 128 kbit/s will result in a file that is about 1/11 the size of the CD file created from the original audio source.
Associated programs foobar2000, AIMP, DirectShow, QuickTime, VLC media player. VLC media player, MPlayer, Winamp, foobar2000.
Wiki https://en.wikipedia.org/wiki/Advanced_Audio_Coding https://en.wikipedia.org/wiki/MP3