FLAC to AAC · Free

Convert FLAC to AAC

Turn your FLAC file into an AAC that plays where you need it, with nothing to install.

Free to start
Nothing to install
Up to 1GB

How it works

How to convert FLAC to AAC

Upload your FLAC file
Drag and drop a FLAC file to turn into AAC, or click to browse. Anything under 1GB, and nothing is installed.
Keep AAC selected
AAC is already selected for your FLAC, first in the list. Pick MP3 or WAV instead if you change your mind.
Convert and download
We convert the FLAC on our servers, usually in under a minute. Create a free account to download the AAC.

Why convert FLAC to AAC?

FLAC compresses audio losslessly: it typically halves the size of a WAV with every sample recoverable bit for bit. Excellent for archiving, awkward for sending, and unsupported by a lot of consumer playback hardware.

The practical problem: Not supported by many phones, car stereos or upload forms. Still several times larger than an MP3 of the same recording.

AAC solves that. Efficient modern codec, standard inside MP4 and streaming.

Container

FLACFree Lossless Audio Codec

AACRaw AAC / ADTS stream

Typical codecs

FLACFLAC (lossless)

AACAAC (lossy)

Best for

FLACArchiving music without losing quality

AACAudio pulled out of video files

Plays on

FLACDesktop players and Android; limited on Apple

AACMost modern devices; bare streams can confuse players

File size

FLACAround half of WAV, still large

AACSimilar to MP3, slightly better quality

Feature	FLAC	AAC
Container	Free Lossless Audio Codec	Raw AAC / ADTS stream
Typical codecs	FLAC (lossless)	AAC (lossy)
Best for	Archiving music without losing quality	Audio pulled out of video files
Plays on	Desktop players and Android; limited on Apple	Most modern devices; bare streams can confuse players
File size	Around half of WAV, still large	Similar to MP3, slightly better quality

FAQ

FLAC to AAC questions

Is the FLAC to AAC converter free?

Yes. Convert and preview the result for free, then create a free account to download it. There is no per-file charge, and nothing is added to the sound of the AAC.

Do I need to install any software?

No. The conversion runs on our servers and you use it from a browser tab, so it works the same on Windows, macOS, Linux, iPhone and Android. Nothing to install at either end. Where FLAC plays: Desktop players and Android; limited on Apple. Where the AAC you get back plays: Most modern devices; bare streams can confuse players.

Does converting FLAC to AAC reduce the quality?

FLAC to AAC is a re-encode, so a small amount of detail is lost. At the default quality level the difference is inaudible on speech, and for music it stays well below what typical playback gear reveals.

How large a file can I convert?

Anything under 1GB per upload, which is more footage in some formats than others. FLAC: Around half of WAV, still large. AAC coming back: Similar to MP3, slightly better quality. For anything bigger, trim or compress it first, both are free tools here.

Is my file kept private?

Your upload is processed and then held only as long as your project needs it. Nothing is published, indexed or shared unless you create a share link yourself.

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