Convert M4A to MP3 for free, in seconds
Drop your files, pick the quality, download. No sign-up, no limits, no upload to a server: the conversion happens right in your browser.
- Free and unlimited
- No sign-up
- Files never uploaded
- Batch conversion
- Tags and cover art kept
1 files converted so far
Drop your M4A files here
or · multiple files accepted
Local conversion: your files never leave your device.
Why m4atomp3.fr instead of another converter?
Typical online converters upload your files to their servers, cap the file size and ask you to create an account. Not here.
Total privacy
Voice memo, interview, meeting recording: nothing leaves your device. The FFmpeg engine runs inside your browser.
Instant
No upload, no queue: the conversion starts immediately and depends only on your machine.
No limits
As many files as you want, up to 200 MB each, with no account, no watermark and no daily quota.
Quality under control
128, 192, 256 or 320 kbps, lossless formats (WAV, FLAC), metadata preserved.
Anywhere
Computer, iPhone, Android, Mac, Linux: all you need is a recent browser.
Hosted in Europe
GDPR compliant, no personal data collected, available in 5 languages.
All audio conversions
The same tool works for every common format.
IPhone voice memos, iTunes purchases, GarageBand recordings, Mac Voice Memos
MP3 → M4APodcasts, music, car stereos, portable players, email attachments
WAV → MP3Audio editing, studios, transcription, pro software, system sounds
MP4 → MP3Smartphone videos, lectures, concerts, online courses
OPUS → MP3WhatsApp/Telegram voice messages, Discord, calls
OGG → MP3Video games, Linux, Wikipedia, WhatsApp voice messages (.opus/.ogg)
FLAC → MP3CD archiving, audiophiles, Bandcamp, Qobuz
WMA → MP3Old CDs ripped with Windows Media Player, old voice recorders
M4A → WAVIPhone voice memos, iTunes purchases, GarageBand recordings, Mac Voice Memos
AAC → MP3Streams extracted from videos, digital recorders, streaming
WEBM → MP3Browser recordings, screen captures, downloaded YouTube videos
MP3 → WAVPodcasts, music, car stereos, portable players, email attachments
How to convert an M4A file to MP3
- Add your files. Drag them into the area above, or click to select them. On iPhone, tap "Browse" then "Voice Memos" or "Files".
- Choose the format and quality. MP3 is selected by default, at 192 kbps. Pick 320 for demanding music, 128 for voice.
- Click "Convert". The first run loads the engine (10 MB, one time only). Conversion takes a few seconds per file.
- Download. A single file downloads automatically; multiple files can be grabbed as one .zip.
M4A or MP3: which should you choose?
M4A (AAC) offers better quality than MP3 at the same bitrate, and it is the native format of the iPhone, iTunes and Apple voice memos. MP3 is less efficient, but it plays on absolutely everything: car stereos, portable players, TVs, old PCs, editing software, websites. If your file needs to be played anywhere other than an Apple device, MP3 remains the safe choice. That is exactly what this site is for.
| M4A (AAC) | MP3 | |
|---|---|---|
| Quality at 128 kbps | Very good | Decent |
| Compatibility | Apple, recent Android, VLC | Universal |
| Car stereos / MP3 players | Often rejected | Always played |
| Metadata, cover art | Yes | Yes (ID3) |
| Patents | Yes (AAC) | Free since 2017 |
Frequently asked questions
Is it really free?
Yes, completely. No sign-up, no file limit, no watermark, no crippled "Pro" version. The site is funded by unobtrusive advertising.
Are my files uploaded to a server?
No. The conversion runs directly in your browser thanks to FFmpeg compiled to WebAssembly. Your files stay on your device. Only very old browsers that do not support this technology fall back to server-side conversion, with automatic deletion within 30 minutes.
Which quality should I choose for MP3?
192 kbps is an excellent compromise for music (indistinguishable from the original for most ears). 320 kbps for maximum quality, 128 kbps for voice (podcasts, memos, lectures). Converting a compressed file to a higher bitrate never improves the sound: it only increases the file size.
Can I convert several files at once?
Yes. Drop as many files as you want; they are converted one after another and you can download everything as a single .zip file.
Does it work on iPhone and Android?
Yes, in Safari, Chrome or Firefox mobile. Conversion is a bit slower than on a computer and the first load of the engine needs a decent connection (about 10 MB, then cached).
Are tags (title, artist, cover art) preserved?
Yes, by default. Metadata is copied into the converted file whenever the destination format supports it (MP3, M4A, FLAC, OGG, OPUS). You can uncheck the option to strip it.