M4A to AAC
Convert M4A files to AAC in seconds, for free. Nothing to install.
Files are deleted from the server automatically after 1 h.
Why convert M4A to AAC?
- AAC sounds better than MP3 at the same bitrate and plays on phones, YouTube and smart TVs.
- Convert in a few seconds right in your browser, without installing software.
You don't need to install any software to convert M4A to AAC. Upload your file, choose AAC and download the result a few seconds later. The conversion runs on our servers and your file is deleted automatically after 1 h.
M4A vs AAC: comparison
| Feature | M4AMPEG-4 Audio (AAC) | AACAdvanced Audio Coding |
|---|---|---|
| Developer | Apple / MPEG | MPEG (Fraunhofer, Dolby, Sony…) |
| Released | 2003 | 1997 |
| Type | audio | audio |
| Compression | lossy | lossy |
| Opens with | iTunes / Apple Music, VLC, Windows Media Player | VLC, Windows Media Player, iTunes / Apple Music |
Tip: choose the bitrate. 128 kbps is enough for speech; 320 kbps is the best quality for music.
How it works
- Choose or drop your M4A file.
- Pick AAC as the output format.
- Click “Convert” and download your file.
M4A to AAC: questions and answers
Will quality be lost when converting M4A to AAC?
AAC uses compression, but at the default settings the difference is hard to hear or see. You can choose a higher bitrate in Options.
How long does M4A to AAC conversion take?
It depends on the length: a short file takes a few seconds, a long video can take a few minutes. Progress is shown as a percentage.
What is the maximum M4A file size?
Up to 200 MB per file and up to 20 files at once — for free.
Can I convert M4A to AAC on my phone?
Yes. TezConvert works in any browser on Android and iPhone — no app needed.
How do I open a AAC file?
AAC files open in: VLC, Windows Media Player, iTunes / Apple Music.
Are my files safe?
Files are used only for the conversion, never shown to anyone, and deleted automatically after 1 h. The original is deleted right after conversion.
⇄ Need the opposite? Convert AAC to M4A →