FLAC to AAC Converter
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Convert FLAC to AAC online
Use this FLAC to AAC converter to turn FLAC files into AAC right in your browser — ideal for streaming audio, Apple devices and modern music. FLAC uses lossless compression and AAC uses lossy compression, so file size and quality can change.
When should you convert FLAC to AAC?
- To reduce file size and make uploading and sharing easier
- When you need it for streaming audio
- When you need it for Apple devices
- To open your files in apps that prefer AAC
What happens to your file
The FLAC audio is decoded and re-encoded to AAC with AAC at 192 kbps. There is no video stream involved, so the job is quick even for long recordings.
Settings this conversion runs with
| Engine | ffmpeg |
|---|---|
| Output codec | AAC |
| Setting | 192 kbps |
| Compression | Lossy |
What changes
- FLAC holds the full waveform, and AAC does not. This pass permanently discards the parts of the signal the codec judges inaudible — keep the FLAC file if it is your master.
- Cover art, lyrics, and most tags are not carried across — the output keeps the audio, not the metadata around it.
About FLAC and AAC files
FLAC audio
Strengths
- lossless quality
- smaller than WAV
- great for archiving
Limitations
- larger than MP3
- not supported everywhere
AAC audio
Strengths
- better quality than MP3 at the same size
- widely supported
Limitations
- lossy
- less universal than MP3
FLAC vs AAC
| Format | FLAC | AAC |
|---|---|---|
| Compression | Lossless | Lossy |
| Transparency | — | — |
| Best for | lossless music, audiophile libraries | streaming audio, Apple devices |
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Frequently asked questions
- Does converting FLAC to AAC re-encode the file?
- The FLAC audio is decoded and re-encoded to AAC with AAC at 192 kbps. There is no video stream involved, so the job is quick even for long recordings.
- What should you know before converting FLAC to AAC?
- FLAC holds the full waveform, and AAC does not. This pass permanently discards the parts of the signal the codec judges inaudible — keep the FLAC file if it is your master.
- Is this FLAC to AAC converter free?
- Yes. You can convert FLAC to AAC online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. Use the converter from your browser without installing software or creating an account. Files are uploaded to our servers for processing.
- Will converting FLAC to AAC reduce quality?
- AAC uses lossy compression, so the file can get smaller while some visual quality may change.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.