AAC → FLAC
AAC to FLAC
Convert AAC audio to FLAC with your choice of bitrate. Drop in a video to extract its FLAC soundtrack too.
Drag & drop files here, or click to choose
.mp3,.wav,.aac,.m4a,.flac,.ogg,.opus,.wma,.aiff,.mp4,.mov,.webm,.mkv · up to 10 files
Files are sent over encrypted HTTPS, processed on our servers, and permanently deleted within 2 hours.
Need a different format? Open the full Convert Audio to pick any output.
About converting AAC to FLAC
AAC is an efficient lossy audio format that sounds better than MP3 at the same bitrate. FLAC is a lossless format that preserves full audio quality at roughly half the size of WAV. Converting from AAC to FLAC swaps one for the other without changing the underlying content.
Pick your target bitrate before converting, and you can also drop in a video file to pull out just its audio track.
How it works
- Choose your AAC file
- Pick your options
- Download the FLAC
Frequently asked questions
How do I convert AAC to FLAC?
Upload your AAC file above, and it converts to FLAC in seconds. It's free, needs no sign-up, and there are no watermarks.
Is the AAC to FLAC converter free?
Yes — completely free with no limits, no account, and no watermarks.
Will converting AAC to FLAC reduce quality?
We use high-quality conversion settings to preserve as much fidelity as possible. You can often adjust quality options before converting.
Is it safe to convert AAC files here?
Yes. Files are deleted automatically within 2 hours and are never read or shared.