Skip to content
Pipeline
All tools

Convert M4A to MP3 for free

Convert your M4A files to MP3 right in your browser, one or many at a time, without uploading them to any server.

Your audio never leaves your device. 100% local processing in your browser, with no usage caps.

Drag your audio files here or click to choose them

  • .m4a

Use your Google Drive without giving up your privacy

Pick files from your Drive, process them here and save the result to any folder you like. Everything happens in your browser: ShiftAny has no servers of its own.

  1. Your Google Drive
  2. Your browserAll processing happens here
  3. Your Drive or your device
ShiftAny servers: none
  • Your files travel straight between Google and your browser. They never touch a server of ours, because we don’t have any.
  • Processing runs on your device, exactly as it does with a file from your computer.
  • The app can only access the files you pick and the ones it saves to your Drive. Never the rest.
  • Access expires after one hour and is never stored. This browser only remembers your name and email so you can reconnect in one click; you can disconnect at any time.
Processing
In your browser
Upload
No upload to ShiftAny
Account
No sign-up
Price
Free
Input
M4A
Output
MP3
Platform
Web browser

How to use “M4A to MP3”

  1. Add the M4A files you want to turn into MP3: you can drop several at once.
  2. Choose the MP3 bitrate: 64 or 96 kbps is plenty for a voice memo.
  3. Click “Convert to MP3” and wait while each M4A is processed.
  4. Download each MP3 on its own, or all your converted M4A files in a ZIP.

From M4A to MP3: what to expect

M4A is the usual container for AAC audio (iPhone voice memos, Apple music). Your browser’s decoder reads it and the tool saves it as MP3, which virtually every player can open. DRM-protected files cannot be read.

Are my files uploaded?

No. ShiftAny Audio processes your audio directly on your device: this tool runs in your browser and never sends your files to any server.

Limits and metadata

ShiftAny sets no duration or size limits: the real ceiling is your device’s memory, because the audio is decompressed to be processed and an hour of stereo takes more than 1 GB. With very long files, we warn you before loading them. The new file contains only the audio: tags (title, artist, cover art) are not copied.

Frequently asked questions

Does it work with iPhone voice memos?

Yes: they are usually unprotected M4A files. For speech, 64 or 96 kbps gives a small, clear file.

What about songs bought on iTunes?

Only if they have no DRM. Protected files cannot be decoded in the browser.

Is quality lost going from M4A to MP3?

A little: both formats are lossy and the audio is re-encoded once. At 192 kbps or more the difference is very hard to hear; for speech it is not noticeable.

Related tools