MP3 to AAC Converter

Convert MP3 (MPEG-1 Audio Layer-III) to AAC (Advanced Audio Coding) online and completely free.

How to convert MP3 to AAC online

  • 1To get started, upload one or more .mp3 files to the converter area.
  • 2Then use the audio conversion settings and click the "Convert" button.
  • 3When the conversion is complete, you can download .aac files.
MP3 to AAC Converter

MP3
MP3 (MPEG-1 Audio Layer III)

MP3 is a popular lossy audio format. This allows you to maintain acceptable sound quality with a small file size. For most users, this loss of sound quality is almost imperceptible, so the MP3 format quickly gained its popularity, allowing you to store more songs on compact digital devices such as smartphones and iPods. Its small size made it a perfect choice for sharing music online.
File type: Audio
File extension: .mp3
Developed by: Fraunhofer Society
Initial release: 1993

AAC
AAC (Advanced Audio Coding)

AAC is an audio coding format that uses lossy compression. As well as other lossy formats, AAC cuts off human-inaudible frequencies to reduce file size. It was developed by Apple as an alternative to other popular lossy formats and is used for streaming and storing music in iTunes. This codec is part of the MPEG-4 container. AAC demonstrates high efficiency at variable and constant bitrate.
File type: Audio
File extension: .aac
Developed by: Bell, Fraunhofer, Dolby, Sony, Nokia, LG Electronics, NEC, NTT Docomo, Panasonic
Initial release: 1997

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