Convert FLAC to M4A
Convert FLAC albums to M4A (AAC) copies for iPhones and Apple Music, which don't play FLAC natively.
This conversion runs in this browser tab. The selected file is not uploaded for processing.
FLAC to M4A, step by step.
These steps describe the FLAC input and the M4A export for this exact route.
Upload FLAC Files
Drag and drop your FLAC files or click to browse. You can queue several at once.
Convert in Your Browser
The first run fetches the conversion engine (a one-time ~31MB download); after that, FLAC to M4A conversion happens entirely on your device — nothing is uploaded.
Download M4A
Save the converted file right away. Multiple files are bundled into a ZIP for one-click download.
What to expect
What matters for M4A output.
Review the behavior this FLAC to M4A tool is designed to preserve, expose, or simplify.
100% Private
All processing happens in your browser. Your files never leave your device.
Efficient AAC Encoding
M4A uses the AAC codec, which delivers better sound than MP3 at the same bitrate — the native format of the Apple ecosystem.
One-Time Engine Download
The first conversion fetches a ~31MB audio engine; your browser caches it, and everything runs locally from then on.
Questions about FLAC and M4A.
Check the format behavior, limitations, and follow-up options before processing a real file.
Apple's ecosystem never embraced FLAC — the Music app and iPhones want AAC or ALAC. Converting your FLAC library to M4A produces compact AAC copies that sync and play natively on Apple devices, with quality at the High setting that's transparent to most ears. Your FLAC files remain the lossless masters; the M4As are disposable listening copies you can regenerate anytime.
Related routes
Continue from M4A.
Choose another format only when it matches the next job.
Next step
Ready to process another FLAC file?
Start here again, or compare plans when the job needs server capacity, retention, or repeat automation.