Convert WMA to AAC
Free, fast and secure — convert WMA to AAC right in your browser.
WMA
AAC
Upgrade your WMA to a modern AAC
Converting WMA to AAC adopts a modern, highly efficient format that keeps quality high while cutting file size — a smart default for today’s web and apps.
How to convert WMA to AAC
- 1 Drop your WMA file into the converter above.
- 2 It is converted to AAC automatically — no settings to fiddle with.
- 3 Download your new AAC file instantly.
WMA vs AAC
| Feature | WMA | AAC |
|---|---|---|
| Compression | Lossy | Lossy |
| MIME type | audio/x-ms-wma | audio/aac |
| Best for | Legacy Windows audio — converted to MP3 for universal playback. | Streaming and modern playback where quality-per-byte beats raw compatibility. |
About the formats
WMA
Windows Media Audio
WMA is Microsoft’s audio format, once common on Windows for music and playback. It compresses well but has limited support outside the Windows ecosystem.
Strengths
- Plays natively on Windows
- Decent compression
- Small files
Limitations
- Weak support on Mac, mobile and web
- Lossy compression
- Often needs converting
Best for: Legacy Windows audio — converted to MP3 for universal playback.
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.
Frequently asked questions
Upload your WMA file above and it is converted to AAC automatically. When it is ready, download your new AAC audio — the whole thing takes just a few seconds in your browser.
Converting WMA to AAC adopts a modern, highly efficient format that keeps quality high while cutting file size — a smart default for today’s web and apps.
Converting between compressed formats can introduce minor changes, but our converter keeps your AAC 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.