AAC to FLAC

FLAC is a lossless audio format: it stores the decoded sound without throwing anything away. Use this converter when a player, library or workflow requires FLAC, or to archive audio without adding any further compression loss.

How to convert AAC to FLAC

1. Upload your AAC file.
2. Click Convert.
3. Download the FLAC file.

AAC to FLAC features

• Lossless FLAC, about half the size of WAV.
• Compatible with most music players and media servers.
• No further quality loss on future conversions.

Will FLAC make my AAC sound better?

No, and no converter can. AAC is a lossy format, so details removed when it was created cannot be restored. FLAC keeps the AAC sound exactly as it is, which is useful for compatibility and for avoiding further loss, but it is not an upgrade.

Frequently asked questions

Why is the FLAC bigger than the AAC?

FLAC is lossless and therefore larger than lossy formats such as AAC.

FLAC or WAV?

Both are lossless. FLAC files are smaller and support tags; WAV is supported by more editing programs.

Does FLAC play on iPhone?

Yes, recent iOS versions play FLAC in the Files app and many players.

Is it free?

Yes.

Privacy, limits and file safety

Your files are processed on our own server, are never shared with anyone and are deleted automatically 60 minutes after processing. You can upload files up to 500 MB and 60 minutes long. No sign-up, no watermark and no software to install: it works in any modern browser on Windows, Mac, Android and iPhone.

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