M4A to MP3 converter
M4A to MP3 is the most common conversion for sharing iPhone recordings with Windows PCs, car stereos and older players that don’t support AAC.
Drop an audio or video file here
MP3, M4A, WAV, OGG, FLAC, MP4, MOV… — processed on your device, never uploaded
How to convert M4A to MP3
- Open the M4A file. Click Open file or drop it on the editor. It is decoded locally.
- Choose what to keep. The whole file is selected; drag to keep only part of it.
- Check the settings. Format is set to MP3 at 192 kbps. Add fades or Normalize if you like.
- Download. Click Download MP3.
About M4A to MP3 conversion
Voice Memos are saved as M4A. Save the memo to Files, open it here, trim the part you need, tick Normalize if it was recorded quietly, and export MP3. For speech, 128 kbps mono gives small files with clear voices.
Converting from one lossy format to another loses a little quality, so pick an MP3 bitrate at or above the source. Most M4A music is 256 kbps AAC, so 256–320 kbps MP3 keeps it as close as possible.
FAQ
How do I convert an iPhone voice memo to MP3?
In Voice Memos tap ⋯ → Save to Files, then open the file here, choose MP3 and download.
Will M4A to MP3 reduce quality?
Slightly, as with any lossy-to-lossy conversion. Use a bitrate at least as high as the original to keep the difference inaudible.
Are my files uploaded?
No. Audio is decoded, edited and encoded in your browser with the Web Audio API, WebCodecs and a JavaScript MP3 encoder. Nothing is sent to a server, so it also works on slow connections once the page has loaded.
Which formats can I open?
Anything your browser can decode: MP3, WAV, M4A/AAC, OGG Vorbis, Opus and FLAC, plus the audio track of MP4, MOV and WebM videos. Chrome and Edge support the widest range.