Turning an iPhone voice memo into an MP3
2026-10-12
The Voice Memos app on an iPhone saves recordings as M4A files. That is a good format, but some upload forms, transcription tools and older players ask for MP3. Converting takes a few seconds; getting the file out of the app is the part people get stuck on.
Do you need to convert?
Often not. M4A plays on Windows, Android, every current browser and most car stereos. Convert when something specifically refuses the file: a form that accepts only MP3, software that wants WAV, or an older device.
Step 1: get the file out of Voice Memos
- Open Voice Memos and tap the recording.
- Tap the three dots, then Share.
- Choose Save to Files and pick a folder, for example On My iPhone. To convert on a computer instead, choose AirDrop or Mail here.
On a Mac with iCloud turned on for Voice Memos, the recordings also appear in the Voice Memos app there, and you can drag one straight to the desktop.
Step 2: convert it
- Open M4A to MP3 in Safari on the phone, or in any browser on a computer.
- Pick the quality. For speech, Small is enough.
- Tap the drop area and choose the file from the folder you saved it to.
The first conversion downloads the 32 MB conversion engine, so use Wi-Fi if mobile data is tight. On an iPhone the MP3 is saved to the Downloads folder in the Files app. The recording itself is not uploaded; it is converted on the phone.
Which setting to use
| Setting | MP3 bitrate | Size of a one-hour recording | Use it for |
|---|---|---|---|
| Small | 128 kbps | About 58 MB | Speech: lectures, meetings, interviews |
| Medium | 192 kbps | About 86 MB | Music rehearsals, anything with instruments |
| High | 256 kbps | About 115 MB | Rarely worth it for a phone recording |
A voice memo is already compressed, so a higher setting cannot add quality that was not recorded. It only makes the file bigger. The MP3 is often larger than the original M4A even on Small; that is normal.
If the file is for transcription or editing
Use M4A to WAV instead. WAV is uncompressed, which avoids compressing the recording a second time, and almost every transcription and editing program accepts it. The cost is size: several times larger than the MP3.
Things that go wrong
- The recording does not appear in the file picker. It is still only inside Voice Memos. Do the Save to Files step first.
- A long recording makes the tab reload on the phone. The whole file is held in memory. Recordings of several hours are better converted on a computer.
- The memo was recorded with Lossless turned on. It is still an M4A file and converts the same way, but the original is much larger.
- Several memos at once. Select them all in the file picker; they are converted one after another. See converting several files at once.