M4A to FLAC on Windows
Convert M4A to FLAC on your Windows. No app to download. Open your browser, drop your file, and convert. Done in seconds.
Drop your M4A file here or click to browse
M4A (.m4a) · Max 20 MB
Runs in Edge, Chrome, and Firefox on Windows 10 and 11. No EXE downloads required. AudioUtils uses WebAssembly to run the conversion engine locally. Your audio stays on your device.
Edge on Windows is fast for audio conversion. Chrome works just as well. Pick whichever you prefer.
M4A is lossy. Converting to FLAC won't restore lost data, but gives you an uncompressed container for editing workflows. The output is identical regardless of which device or browser you use.
Frequently Asked Questions
Does converting M4A to FLAC improve audio quality?
No. M4A typically uses lossy AAC compression, and that lost data can't be recovered. FLAC stores the audio losslessly from this point forward, preventing further degradation.
Why convert to FLAC if it doesn't improve quality?
FLAC is open-source and supported by nearly every media player outside Apple. It also preserves the current quality exactly — no further loss from future format conversions.
Will FLAC files be larger than M4A?
Yes, typically 3-5x larger. FLAC is lossless, so it stores more data per second of audio than the compressed M4A source.
About M4A
Apple's preferred audio format. Better quality than MP3 at same bitrate. Default for iTunes and Apple devices.
About FLAC
Lossless compression. Perfect quality at roughly half the size of WAV. The choice for audiophiles and archiving.