Question 1

Can I convert M4A to AAC on my phone?

Accepted Answer

Open this page, select your M4A file(s), and confirm AAC as the output. Processing runs in your browser; download when finished.

Question 2

Is M4A to AAC conversion free?

Accepted Answer

Yes — unlimited conversions, no account, no watermark.

Question 3

Are my M4A files stored on your servers?

Accepted Answer

No. FileConvertir processes files locally in your browser. They never leave your device.

Question 4

Can I convert multiple M4A files to AAC at once?

Accepted Answer

Yes — drop up to 20 M4A files at once. They convert in parallel and you can download results individually or as a ZIP archive.

Question 5

Is M4A to AAC conversion truly free?

Accepted Answer

Yes — completely free with no limits, no watermark, no account required, and no expiry on use. FileConvertir runs as a client-side tool in your browser; there is no server infrastructure charging per conversion.

Question 6

Why convert M4A to AAC instead of using a desktop app?

Accepted Answer

Browser conversion is ideal for occasional or one-off tasks — no installation, no license, and files stay on your device. Desktop apps like Audacity, FFmpeg CLI, or Adobe Audition are better for bulk production workflows where you need scripting or advanced output controls.

Question 7

What is the file size limit?

Accepted Answer

Up to 100MB per file and 20 files per batch (500MB total). A 1-hour audio file at high quality is typically 50–80MB — within the limit for most recordings.