Convert AAC to M4A
Free, fast and secure — convert AAC to M4A right in your browser.
AAC
M4A
Convert AAC to M4A for wider compatibility
Converting AAC to M4A gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when AAC will not play nicely everywhere.
How to convert AAC to M4A
- 1 Drop your AAC file into the converter above.
- 2 It is converted to M4A automatically — no settings to fiddle with.
- 3 Download your new M4A file instantly.
AAC vs M4A
| Feature | AAC | M4A |
|---|---|---|
| Compression | Lossy | Lossy |
| MIME type | audio/aac | audio/mp4 |
| Best for | Streaming and modern playback where quality-per-byte beats raw compatibility. | High-quality music and voice on Apple devices and modern apps. |
About the formats
AAC
AAC audio
AAC is the successor to MP3, offering better sound at the same bitrate. It is the standard for streaming services, YouTube and Apple devices.
Strengths
- Better quality than MP3 at equal size
- Standard for streaming platforms
- Wide modern-device support
Limitations
- Lossy compression
- Slightly less universal than MP3
- No lossless mode
Best for: Streaming and modern playback where quality-per-byte beats raw compatibility.
M4A
M4A (AAC) audio
M4A holds AAC audio, the default for Apple Music and iTunes. It generally sounds better than MP3 at the same bitrate and is well supported on modern devices.
Strengths
- Better quality than MP3 at equal size
- Default on Apple platforms
- Efficient, modern codec
Limitations
- Slightly less universal than MP3
- Lossy compression
- Occasional legacy-player issues
Best for: High-quality music and voice on Apple devices and modern apps.
Frequently asked questions
Upload your AAC file above and it is converted to M4A automatically. When it is ready, download your new M4A (AAC) audio — the whole thing takes just a few seconds in your browser.
Converting AAC to M4A gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when AAC will not play nicely everywhere.
Converting between compressed formats can introduce minor changes, but our converter keeps your M4A looking as close to the original as possible.
Yes. The converter is free to use, with no watermark and no sign-up required.
Your files are processed securely and are never shared with anyone.