Convert AAC to FLAC
Free, instant, and secure online converter. Upload your .aac file and receive a crisp .flac result in seconds.
Need the opposite conversion? Convert FLAC to AAC →
How to convert AAC to FLAC
Upload Your File
Click the upload zone or drag and drop your .aac file anywhere on the area.
Start Converting
Hit Convert and our server will process your file instantly with high fidelity preservation.
Download Result
Your .flac file is ready in seconds! Click download. Files auto-delete in 6 hours.
AAC vs FLAC: Comparison
| Attribute | AAC (.AAC) | FLAC (.FLAC) |
|---|---|---|
| Category | audio | audio |
| MIME Type | audio/aac | audio/flac |
| Description | AAC offers better sound quality than MP3 at similar bitrates and is used by Apple Music and YouTube. | FLAC is a lossless audio codec that preserves full sound quality while reducing file size. |
About These Formats
About AAC files
AAC offers better sound quality than MP3 at similar bitrates and is used by Apple Music and YouTube.
About FLAC files
FLAC is a lossless audio codec that preserves full sound quality while reducing file size.
Frequently Asked Questions
How do I convert AAC to FLAC?
Upload your .aac file using the box above, or drag and drop it in. We'll automatically convert it to .flac format — just click download when it's ready.
Is it free to convert AAC to FLAC?
Yes. Converting AAC to FLAC is completely free, with no watermarks, no signup, and no limit on how many files you convert.
Is it safe to convert files here?
Yes. Files are processed securely and automatically deleted from our servers a few hours after conversion. We never share or view the contents of your files.
What is a aac file?
AAC offers better sound quality than MP3 at similar bitrates and is used by Apple Music and YouTube.
What is a flac file?
FLAC is a lossless audio codec that preserves full sound quality while reducing file size.