Convert AAC to FLAC

AAC → FLAC. Source file ≤ 100 MB · Output ≤ 100 MB.

Raw AAC may report an estimated duration; M4A provides a timed container. FLAC compresses audio losslessly; it cannot restore detail lost in a lossy source.

AAC → FLAC: Example settings

60 s • 48,000 Hz • 2 ch • FLAC • MB: ?

FLAC: Output

Sizes are examples, not guarantees. Container overhead is extra; variable bitrate and image content change the result. Keep the original and compare the output.

JavaScript is required for file selection and processing.