Convert M4A to Another Format
Export your M4A files to MP3 for sharing, WAV for editing, or FLAC for lossless archiving.
Convert M4A to MP3 for universal playback on any device, player, or platform.
Unpack M4A to uncompressed WAV for editing in Audacity, GarageBand, or any DAW.
Archive your M4A files as lossless FLAC — smaller than WAV, zero quality loss.
Convert M4A to OGG Vorbis for open-source projects or Android devices.
Convert to M4A
M4A is AAC in an MP4 container — the preferred audio format for Apple devices, iTunes, and AirDrop. Convert any format to M4A for seamless use in the Apple ecosystem.
Re-package MP3 audio as M4A for iTunes, Apple devices, or AirDrop sharing.
Compress uncompressed WAV to M4A for smaller file sizes in the Apple ecosystem.
Convert lossless FLAC to M4A for use in iTunes or on iPhone.
Convert Apple's AIFF format to M4A for a smaller, still Apple-native file.
About the M4A Format
M4A is Apple's container for AAC-encoded audio (MPEG-4 Audio). The .m4a extension distinguishes audio-only MP4 files from video — the data inside is identical, just the container label differs. Apple introduced the format in 2001 alongside iTunes and the first iPod.
iPhone Voice Memos saves recordings as .m4a by default. iTunes Store purchases have been M4A (AAC, 256 kbps) since the DRM-free iTunes Plus rollout in 2009. M4A is more efficient than MP3: a 128 kbps M4A sounds comparable to a 160 kbps MP3 at the same file size, thanks to AAC's more modern compression algorithm.
Native support: all Apple devices, iTunes, Finder Quick Look, Windows 10+ (via built-in codecs), and most modern Android players. Less universal than MP3 — older media players, car stereos, and some embedded devices do not support it. Converting M4A to MP3 trades a small amount of quality for true universal compatibility. Converting to WAV unpacks to uncompressed PCM for lossless editing.
Common M4A Scenarios
Real situations where converting M4A makes sense.
iPhone Voice Memos
Voice Memos saves recordings as DRM-free .m4a files. Convert to MP3 to share with anyone — Windows PCs, Android phones, podcast editors, or Google Drive.
iTunes Purchases
iTunes Store purchases since 2009 (iTunes Plus) are DRM-free M4A at 256 kbps AAC. Convert to MP3 to play on older hardware or non-Apple devices.
Podcast Editing
Recorded an interview on iPhone? Convert the M4A to WAV before importing into Audacity or GarageBand for clean editing without re-encoding artifacts.
Apple Music Local Files
If you have local, DRM-free M4A files (not streamed), convert to FLAC for a lossless archive that plays anywhere without depending on Apple's ecosystem.
Important note on DRM
AudioUtils can only convert DRM-free M4A files. Apple Music streams and older iTunes Store purchases with FairPlay DRM cannot be converted — the browser has no access to the decryption key. DRM-free files include: iPhone Voice Memos, M4A files you have ripped yourself, and iTunes Store purchases since 2009 (iTunes Plus, 256 kbps AAC, no DRM). If your file plays in iTunes or Finder but cannot be shared, it may be DRM-protected.
Also Useful
Other audio converters people use alongside M4A conversion.
Frequently Asked Questions
What is an M4A file?
M4A is AAC audio stored inside an MPEG-4 container — essentially the same as an .mp4 file but audio-only. Apple created the .m4a extension to distinguish audio-only MP4 files from video. It is the standard audio format across the Apple ecosystem: iPhone Voice Memos, iTunes Store purchases, and Apple Music all use M4A.
Can I convert iPhone Voice Memos to MP3?
Yes. iPhone Voice Memos are saved as DRM-free M4A files, so they can be converted freely. Use the M4A to MP3 converter to turn your Voice Memos into MP3 files that play on any device or platform.
Does converting M4A to MP3 reduce quality?
Slightly. Both M4A (AAC) and MP3 are lossy formats, so converting from one to the other compounds the quality loss slightly. At 192 kbps output, most listeners cannot detect the difference — especially on voice recordings and spoken word. For music you care about, keep the original M4A and only export to MP3 when you need universal compatibility.
Is this M4A converter free?
Yes. AudioUtils is free with no account required. The free tier outputs a 30-second preview. Pro ($9/month) unlocks full-length conversions and files up to 500 MB.
Do my M4A files get uploaded to a server?
No. AudioUtils runs FFmpeg compiled to WebAssembly entirely in your browser. Your files never leave your device — we never see them, store them, or log them.