Convert M4A to FLAC

M4A vs FLAC: what is the difference?

AAC audio in an MP4 container, common on Apple devices and streaming services. A lossless format that shrinks files without discarding any audio quality.

What happens to the sound quality?

M4A is already lossy. Converting to FLAC will not bring back lost quality and only makes the file larger.

How much will the file size change?

For a 3-minute stereo track, M4A is about 4.3 MB and FLAC is about 17.5 MB. Actual sizes depend on the track and settings.

When should you choose FLAC?

FLAC is a good fit when you want to save space without losing quality.

FAQ

Does converting M4A to FLAC reduce the sound quality?

M4A is already lossy. Converting to FLAC will not bring back lost quality and only makes the file larger.

Are my files uploaded to a server?

Files never leave your device; everything runs in your browser.

What is the FLAC format used for?

A lossless format that shrinks files without discarding any audio quality. FLAC is a good fit when you want to save space without losing quality.