Convert M4A to AAC
Turn MPEG-4 audio files (.m4a) into Advanced Audio Coding (.aac) 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.
AAC to M4A insteadHow to convert M4A to AAC
- 1Drop your M4A files into the box above, or click to choose them.
- 2AAC is already selected. Adjust the options if you like.
- 3Click Convert and download your AAC files.
Good to know
- AAC 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 M4A to AAC 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 M4A to AAC?
No noticeable loss: the conversion keeps the content of your M4A file intact.
Can I convert several files at once?
Yes. Drop as many M4A 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 M4A?
M4A is AAC audio in an MPEG-4 container, the standard on Apple devices and good quality at small sizes.
What is AAC?
AAC is a lossy audio codec that sounds better than MP3 at the same bitrate.