Free AAC to FLAC Converter

Convert AAC audio files to FLAC format fast and for free.

How to convert AAC to FLAC online

  • 1To get started, select the .aac files you want to convert and add them to the converter.
  • 2Next, use the conversion settings and click the "Convert" button.
  • 3That's all! Now you can download the converted .flac files.
Free AAC to FLAC Converter

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

FLAC
FLAC (Free Lossless Audio Codec)

FLAC is a music encoding format, one of the most popular lossless compression formats. It delivers near-perfect unchanged sound quality. Moreover, unlike other common lossless formats, it takes up less space in the device's memory. To enjoy the full benefits of lossless audio listening, you may need professional audio equipment, like high-end earphones or stereo.
File type: Audio
File extension: .flac
Developed by: Xiph.Org Foundation
Initial release: July 20, 2001

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