Convert MP3 to M4A
Turn MPEG Audio Layer III files (.mp3) into MPEG-4 audio (.m4a) in seconds. Drop one file or a whole batch: the conversion happens right in your browser, with no sign-up, no watermark and no upload.
M4A to MP3 insteadHow to convert MP3 to M4A
- 1Drop your MP3 files into the box above, or click to choose them.
- 2M4A is already selected. Adjust the options if you like.
- 3Click Convert and download your M4A files.
Good to know
- M4A is compressed, so you can pick a bitrate: higher sounds better, lower makes smaller files.
- Large videos are processed as a stream, so even long files work as long as your device has enough memory.
Frequently asked questions
Is converting MP3 to M4A free?
Yes. There is no sign-up, no watermark and no limit on the number of files.
Are my files uploaded?
No. Everything runs in your browser, so your files are never uploaded to a server. That also makes it fast, because nothing has to travel over the network.
Will I lose quality converting MP3 to M4A?
No noticeable loss: the conversion keeps the content of your MP3 file intact.
Can I convert several files at once?
Yes. Drop as many MP3 files as you like. They are converted one after another and you can download them individually or as a ZIP.
Is there a file size limit?
There is no fixed limit. Very large files depend on your device's memory, since the conversion runs locally.
What is MP3?
MP3 is the most compatible audio format, playable on practically every device.
What is M4A?
M4A is AAC audio in an MPEG-4 container, the standard on Apple devices and good quality at small sizes.