Convert M4A to FLAC Online
Need to convert M4A to FLAC right now? Drop your file and get results in seconds. Everything runs in your browser. Your audio never leaves your device.
Drop your M4A file here or click to browse
M4A (.m4a) · Max 20 MB
AudioUtils converts M4A to FLAC using WebAssembly. The entire process happens locally. No upload, no server, no waiting in a queue.
Open any browser. Pick your file. Click convert. The FLAC file downloads instantly. Works on any device with a modern browser.
M4A is lossy. Converting to FLAC won't restore lost data, but gives you an uncompressed container for editing workflows. Free tier handles input files up to 20MB with a 10-second preview output. Upgrade to Pro for unlimited, full-length conversions up to 500MB.
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.