FLAC to M4A on iPhone
Convert FLAC to M4A on your iPhone. No app to download. Open your browser, drop your file, and convert. Done in seconds.
Drop your FLAC file here or click to browse
FLAC (.flac) · Max 20 MB
Open AudioUtils in Safari on iOS. The converter works on iPhone 8 and newer. No App Store download needed. AudioUtils uses WebAssembly to run the conversion engine locally. Your audio stays on your device.
On iPhone, converted files save to your Files app. Tap the download link and choose where to save.
FLAC is lossless. Converting to M4A reduces file size at the cost of some audio data. Use a high bitrate to minimize loss. The output is identical regardless of which device or browser you use.
Frequently Asked Questions
How does M4A quality compare to FLAC?
At 256kbps AAC, the difference from FLAC is nearly imperceptible in normal listening. You lose the lossless guarantee, but the audible quality is excellent.
Will my FLAC metadata transfer to M4A?
Yes. M4A has excellent metadata support — title, artist, album, track number, and album art all transfer cleanly.
Is M4A the same as AAC?
M4A is the container file format, and AAC is the codec inside it. M4A files almost always use AAC compression. Think of M4A as the box and AAC as what's inside.
About FLAC
Lossless compression. Perfect quality at roughly half the size of WAV. The choice for audiophiles and archiving.
About M4A
Apple's preferred audio format. Better quality than MP3 at same bitrate. Default for iTunes and Apple devices.