Convert FLAC to AAC
FLAC is great for archiving CDs and hi-res music without quality loss, but AAC is the better choice for efficient music files and broadcast audio. Convert FLAC to AAC in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert FLAC to AAC
- 1
Tap Choose files and select one or more FLAC files (or drag them in).
- 2
Check that AAC is selected. Use Advanced options for bitrate, channels or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your AAC downloads automatically. Converting several files? Grab them all as a ZIP.
FLAC vs AAC
AAC uses lossy compression, which makes the file much smaller than FLAC. Choose High quality and the difference is inaudible for most listeners.
| FLAC | AAC | |
|---|---|---|
| Full name | Free Lossless Audio Codec | Advanced Audio Coding (raw ADTS) |
| Type | Audio | Audio |
| Compression | Lossless | Lossy |
| Developed by | Xiph.Org | MPEG |
| Introduced | 2001 | 1997 |
| Plays on iPhone | ✓ Yes | ✓ Yes |
| Plays on Android | ✓ Yes | ✓ Yes |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ✓ Yes | ✓ Yes |
About FLAC and AAC
FLAC: FLAC is an open lossless format that shrinks audio to 50–60% of WAV size without losing any quality. It is the favourite format of audiophiles and hi-res music stores.
AAC: AAC is the successor to MP3 and the audio codec behind YouTube, iTunes and most streaming services. A .aac file stores the raw AAC stream without an MP4 wrapper.
Frequently asked questions
How do I convert FLAC to AAC on my phone?
Will converting FLAC to AAC reduce quality?
Is this FLAC to AAC converter free?
Are my files uploaded to a server?
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