MP3 to AAC

Convert MP3 to AAC online for free

What's new: The "Merge JPG to PDF" function is finally available after months of development, a new way to convert multiple files to one file.

1: Choose local MP3 files or enter URL of online MP3 file. 2: Choose "AAC" as target format and set options (optional). 3: Click "START CONVERSION" button and wait for conversion to complete.

Choose files or enter remote file URL

Set conversion options (optional)

# OUTPUT FILES FILE SIZE DOWNLOAD

MP3

MPEG-1 or MPEG-2 Audio Layer III

File extension: .mp3

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.

AAC

Advanced Audio Coding

File extension: .aac

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.