How to Convert M4A to MP3 on iPhone
· Updated · 4 min read · By Furkan Kaya
Quick answer
iOS has no built-in way to save audio as MP3. To convert M4A to MP3 on iPhone, open the free M4A to MP3 converter below in Safari, tap Choose files, pick the M4A from Files (save voice memos there first via Share → Save to Files), choose a bitrate and tap Convert to MP3. The file is converted in your browser, not uploaded.
Or do it right here — this converter runs in Safari on your iPhone and never uploads the file:
You recorded a voice memo or saved an audio clip, and it came out as M4A. It plays fine on your iPhone — but try sending it to a Windows PC, an old car stereo, or an upload form that demands MP3, and you hit a wall. Converting M4A to MP3 makes the audio play everywhere, and you can do it on your phone in under a minute.
M4A vs. MP3: what's the difference?
M4A (usually AAC audio) is Apple's default for Voice Memos and many recordings. It delivers great sound at a small size. MP3 is older but universally supported — every player, platform and device understands it. If compatibility matters more than squeezing out the last bit of efficiency, MP3 is the safe choice.
How to convert M4A to MP3 on iPhone (step by step)
There is no MP3 option in the Files app, Voice Memos or Shortcuts, so you need a converter. The free M4A to MP3 converter runs in Safari and encodes the MP3 on your phone — the audio is not sent to a server.
- If it's a voice memo, open Voice Memos, tap the recording, tap Share (or ⋯) and choose Save to Files.
- Open the converter above (or fileconverterapp.com/m4a-to-mp3/) in Safari and tap Choose files → Browse.
- Select the M4A file(s) and pick a bitrate (quality).
- Tap Convert to MP3 and download — the MP3 lands in Files → Downloads, ready to share.
Converting a lot of recordings? The Voice Memo to MP3 converter is tuned for speech, and the WAV to MP3 converter handles uncompressed audio from recorders and editors.
Which MP3 bitrate should I choose?
| Content | Recommended bitrate | Result |
|---|---|---|
| Voice memo / spoken word | 128 kbps | Clear speech, small file |
| Music — everyday listening | 256 kbps | Great quality, reasonable size |
| Music — archive quality | 320 kbps | Highest MP3 quality, larger file |
Tip: convert voice memos before sharing
If you record interviews, lectures or song ideas in Voice Memos, share the memo to save it as an M4A, then convert to MP3 so anyone — on any device or platform — can play it without hassle.
What about the ConvertEase iPhone app?
To be straightforward: the ConvertEase app does not output MP3. On iOS it converts audio to M4A, WAV and AAC on the device — useful if an editor wants WAV, for example. It is free to download; saving results requires a Premium subscription. For MP3, use the web converter above.
Convert M4A to MP3 in your browser
Free · runs in Safari · the file is not uploaded
Open the M4A to MP3 converterFrequently asked questions
Apple's Voice Memos and many iPhone apps save audio as M4A (AAC), which sounds great at small sizes. But some older players, car stereos, DAWs and upload tools only accept MP3, so you may need to convert.
iOS has no built-in MP3 export. Open a browser-based converter such as ConvertEase's free M4A to MP3 tool in Safari, choose the M4A file from Files, pick a bitrate and tap Convert to MP3. The file is converted in your browser, not uploaded, and the MP3 saves to Files → Downloads.
Both are compressed formats, so converting at a high bitrate (such as 256 or 320 kbps) keeps the audio sounding essentially the same. For voice memos a lower bitrate is fine and makes the file smaller.
Yes. In Voice Memos, share the memo and choose Save to Files to get an M4A file, then convert it with the free Voice Memo to MP3 or M4A to MP3 converter in Safari. This is handy for sending recordings to people on Windows or Android, or uploading to platforms that require MP3.
No. On iOS the ConvertEase app outputs audio as M4A, WAV or AAC, not MP3. For MP3, use the free ConvertEase web converter in Safari. The app is free to download; saving results requires a Premium subscription.