M4A
MPEG-4 audio
M4A is an MPEG-4 audio file, usually AAC, used by iTunes, iPhone voice memos and many recorders. It sounds good at small sizes, but some players and car stereos only take MP3.
Extensions: .m4a
M4A to MP3 converter
Convert M4A files to MP3 on Windows 10 and 11: free, offline and in batches. Drag the files onto MP3 in Filee's format donut and the MP3 files appear next to the originals.
How to convert M4A to MP3 on Windows
- 1
Select your M4A files
In File Explorer or on the desktop, select one M4A file or as many as you like. The first time, Filee offers to download FFmpeg, the free engine it uses for this conversion.
- 2
Hold Ctrl and drag
Hold Ctrl (or the key you set in Filee) and drag the files. A donut of formats opens at the cursor. Prefer menus? Right-click and choose Convert with Filee.
- 3
Drop on MP3
Release the files over MP3. A progress ring counts up, and each MP3 file is saved next to its original.
What Filee does for M4A → MP3
iPhone voice memos, DRM-free iTunes downloads and many recorders produce M4A. MP3 is accepted by every player, car stereo and upload form.
- Uses FFmpeg, a free optional engine that Filee downloads once into its own folder (about 100 MB). Programs installed on your PC are never used.
- The MP3 128k preset makes smaller files, ideal for speech.
- Batch: one file or hundreds, converted in parallel; a failure never stops the rest.
- Private: files are converted on your PC and never uploaded, even without internet.
- Saved next to the original, or in a folder and with a file name pattern you choose.
M4A can also become
- WAV
- FLAC
- OGG
- OPUS
- AAC
About M4A and MP3
MP3
MP3 audio
MP3 is the classic compressed audio format. Practically every player, car stereo and phone plays it, which makes it the safest choice for sharing music, podcasts and recordings.
Extensions: .mp3
Convert M4A to MP3 for free
Filee is a free, open-source file converter for Windows 10 and 11. It works offline and converts 180+ formats with one drag and drop.
Download for Windows