CloudConverterM4A files from iPhone voice memos, iTunes and Apple Music do not play on every device. Convert M4A to MP3 to get a file that nearly any player, car stereo or app accepts.
M4A vs MP3: what changes
M4A is a container that usually holds AAC audio, sometimes Apple's lossless ALAC. MP3 is an older, universally supported lossy format. AAC generally sounds slightly better than MP3 at the same size, so moving from M4A to MP3 gains compatibility rather than quality.
When to convert M4A to MP3
Use it for voice memos you want to send to Android or Windows users, music for a car stereo or older player, and uploads to sites that only accept MP3.
Before you convert
If your M4A is already lossy AAC, converting to MP3 is a second lossy step and can lower quality a little. DRM-protected files from stores cannot be converted.
Tips for converting M4A to MP3
For spoken recordings like meetings, lectures and interviews, MP3 is a safe choice and the quality loss is rarely audible. For music you care about, keep the original M4A as your master and use the MP3 only for devices that need it.
Convert M4A to MP3 on any device
iPhone Voice Memos are saved as M4A. Share the recording to the Files app, open this page on the phone, tap the upload box, choose the recording and download the MP3. On a Mac, drag the .m4a file from Finder onto the upload box. Android and Windows users can use it the same way.
Frequently asked questions
Will converting M4A to MP3 lose quality?
Possibly a small amount. M4A is usually already compressed, and MP3 compresses again. For voice memos and everyday listening the difference is hard to notice.
Can I convert protected Apple Music downloads?
No. Files protected by DRM cannot be converted. This works for your own recordings, voice memos and files without copy protection.
Where are my iPhone voice memos saved?
Voice Memos can be shared or saved to the Files app. From there you can upload them to this page.
Is M4A the same as AAC?
Mostly. M4A is a container, and the audio inside is usually AAC. Some M4A files use Apple Lossless instead.
Will the MP3 be much bigger than the M4A?
It is often similar or slightly larger. Both are compressed formats, so the size does not change dramatically.
Is it free to convert M4A to MP3?
Yes. It is free, with no sign-up and no watermark.
Are my files kept after conversion?
No. Uploaded files are processed and deleted after your download. We do not keep a library of your files.
Is there a file size limit?
Uploads are capped at 200 MB per file.