How to convert FLAC to AAC
To convert FLAC to AAC, upload your FLAC file, choose AAC as the output format and press Convert. The finished AAC file is ready to save to your phone or computer in seconds, free, with no watermark and no sign-up. Your file is deleted from our server about 30 minutes after the conversion.
This free online converter turns FLAC audio files into AAC in your browser, with no software to install and no watermark. The conversion runs on our server using ffmpeg, and the result is ready to save to your phone or computer in seconds. Your FLAC file is deleted automatically about 30 minutes after the conversion.
Why convert FLAC to AAC?
- Better quality than MP3 at the same size
- The default audio of YouTube and Apple
- Efficient at low bitrates
- Opens in: iPhone, Android, Windows, macOS, VLC and most hardware players
What to expect from this conversion
- FLAC is lossless and AAC is lossy, so the file gets much smaller. The quality setting balances size and sound.
- AAC output is a raw ADTS stream without a container, which plays in most players but stores no cover art. Choose M4A if you need tags.
- Tags such as title and artist are carried over where AAC supports them.
FLAC vs AAC
| Property | FLAC | AAC |
|---|---|---|
| Full name | Free Lossless Audio Codec | Advanced Audio Coding (ADTS stream) |
| Released | 2001, Xiph.Org Foundation | 1997, MPEG (Fraunhofer, Dolby, Sony and others) |
| Family | Audio | Audio |
| Compression | Lossless | Lossy |
| Opens in | VLC, foobar2000, Android, Windows 10+, many hi-fi players and recent iOS | iPhone, Android, Windows, macOS, VLC and most hardware players |
| Best for | archiving a CD collection; audiophile listening | streaming and broadcast; radio and live audio |
Steps to convert FLAC to AAC
- Drop your FLAC file onto the converter, or click to choose it.
- Check that AAC is selected as the target format and adjust the options if you want.
- Press Convert, then save the new AAC file to your device when it finishes.
Tips for the best result
- Choose High for music you care about and Small for voice recordings.
- Convert from the original lossless file when you have one.
Frequently asked questions
How do I convert FLAC to AAC?
Drop your FLAC file on the converter, confirm that AAC is the target format and press Convert. When it finishes, press Save to device or download the AAC file. No account or software is needed.
Is the FLAC to AAC converter free?
Yes. It is free, with no watermark, no sign-up and no limit on how many files you convert. The site is supported by ads.
What should I know before converting FLAC to AAC?
FLAC is lossless and AAC is lossy, so the file gets much smaller. The quality setting balances size and sound. AAC output is a raw ADTS stream without a container, which plays in most players but stores no cover art. Choose M4A if you need tags.
Will the sound quality change when converting FLAC to AAC?
FLAC is lossless and AAC is lossy, so the file gets much smaller. The quality setting balances size and sound.
Which programs open AAC files?
AAC files open in iPhone, Android, Windows, macOS, VLC and most hardware players.
How large a file can I convert?
Up to 200 MB per file. Files are deleted from the server about 30 minutes after conversion, and no one looks at them.