M4A to MP3 Converter
M4A is Apple’s audio format — used by iPhone voice memos, iTunes and many recorders. Convert M4A to MP3 to play the files on any device, car stereo or Windows app. Fast, free and completely private.
- No upload
- Up to 320 kbps
- Tags & cover kept
- Free, unlimited
Drop M4A files here
or
You can also paste with Ctrl+V (⌘+V on Mac) or drop a whole folder.
M4A · AAC · MP4 audio · iPhone voice memos → MP3
Your files are processed on your device and are never uploaded.
This tool needs a recent browser with WebAssembly and Web Workers: Chrome, Edge, Firefox, Safari or Samsung Internet. Please update your browser or try another one.
Done — your files are ready
You changed the settings — click the button again to update the result.
How to convert M4A to MP3
Three steps — no software, no sign-up.
- 1
Add M4A files
Drop your M4A files (or a whole folder) onto the page.
- 2
Pick a quality
Match or exceed the M4A’s bitrate: 192 kbps for music, 64–96 kbps for voice memos.
- 3
Convert & download
Click “Convert to MP3”, listen to the result and download the files or a ZIP.
M4A to MP3 for every device
A real LAME MP3 encoder, running privately on your device.
Best MP3 quality
The LAME encoder — the reference for MP3 — at any bitrate from 32 to 320 kbps, CBR or VBR.
Tags & cover art
Title, artist, album, year, track number and album art are copied into the MP3’s ID3 tags.
iPhone voice memos
Turn voice memos into MP3s that open everywhere — even on old players and in email.
iTunes & AAC
DRM-free iTunes purchases and AAC files convert with tags and artwork intact.
Batch conversion
Convert entire albums or folders at once and download them as a ZIP.
Hear it first
Play the MP3 and switch to the original at the same position before downloading.
100 % private
Nothing is uploaded — conversion happens inside your browser.
Free
No watermark, no account, no limits.
M4A vs MP3: why convert?
M4A files contain AAC audio in an MPEG-4 container. AAC sounds slightly better than MP3 at the same bitrate, but M4A isn’t supported everywhere — older car stereos, some Android apps, many websites and upload forms only take MP3.
Because both formats are lossy, use an MP3 bitrate at least as high as the M4A: a 128 kbps M4A converts well to 160–192 kbps MP3; a 256 kbps iTunes file to 256–320 kbps.
Protected iTunes files (.m4p with DRM) can’t be converted by any browser tool. Voice memos from iPhone (.m4a) work perfectly.
Size of a 4-minute song
| Format | Size | Notes |
|---|---|---|
| M4A (AAC) 256 kbps | 7.7 MB | iTunes Plus |
| MP3 320 kbps | 9.6 MB | Maximum |
| MP3 256 kbps | 7.7 MB | Matches iTunes quality |
| MP3 192 kbps | 5.8 MB | Excellent |
| MP3 64 kbps mono | 1.9 MB | Voice memos |
Tips
- Need a different target format? The Audio Converter also creates M4A, WAV, FLAC and OGG.
- Fix or add tags after converting with the ID3 Tag Editor.
- Already have MP3s that are too big? Use the MP3 Compressor.
- Cut a voice memo to the important part with the Audio Cutter.
Frequently asked questions
Can’t find your answer? Contact us — we reply quickly.
How do I convert M4A to MP3?
Drop your M4A files onto this page, pick a quality preset (192 kbps is a good default) and click “Convert to MP3”. Then download the MP3 files.
How do I convert an iPhone voice memo to MP3?
Share the memo to Files or AirDrop it to your computer, open this page and drop the .m4a file. Choose 64 or 96 kbps for speech and click “Convert to MP3”.
Will converting M4A to MP3 lose quality?
A little, because both are lossy. Choose an MP3 bitrate equal to or higher than the M4A’s and the difference is inaudible.
Can I convert protected iTunes songs (M4P)?
No. DRM-protected files can’t be decoded in the browser. DRM-free M4A files from iTunes work fine.
Are my files uploaded to a server?
No. The MP3 encoder runs in your browser, so your files never leave your device.
Are tags and album art kept?
Yes. Title, artist, album, genre, year, track number and cover art are written to the MP3 as ID3 tags.
Can I convert many M4A files at once?
Yes — add up to 100 files (or drop a folder) and download all MP3s as one ZIP file.
More free audio tools
Compress, convert, cut, join and analyse audio — fast, free and private, right in your browser.