AAC to FLAC Converter

Upload audio files

Drop or click to add one or more audio files

How to convert AAC to FLAC

1
Add one or more AAC files. You can review the complete batch before processing it.
2
FLAC is already selected for this page. Add multiple audio files and use the available codec, trim, volume, fade and reverse controls.
3
Start the batch, then download and check the finished FLAC file or files.

What changes when you convert AAC to FLAC?

FLAC avoids another lossy compression step, but it cannot recover audio detail already discarded by the AAC source. The file may also become larger.

Add multiple audio files and use the available codec, trim, volume, fade and reverse controls.
Open the finished FLAC file and check fine details, layout and compatibility in the app where you plan to use it.

Source format

What is a AAC file?

AAC (Advanced Audio Coding) is the successor to MP3, delivering better sound at the same file size. It is the default for Apple Music, YouTube and most streaming services, and is supported across virtually all modern devices.

How to open a AAC file

AAC plays in Apple Music/iTunes, QuickTime, VLC and on nearly all modern phones, browsers and players.

Output format

What is a FLAC file?

FLAC is a lossless audio format that compresses music with zero quality loss - every detail of the original recording is preserved. It is the favourite of audiophiles and for archiving CDs, though files are much larger than MP3.