Bulk WMA to M4A Converter Online — Free HD Quality
Drag and drop your multiple WMA files into this 100% free online WMA to M4A converter (.wma to .m4a), and click the Convert button to bulk convert them to M4A format in HD quality. Use the quality slider to fine-tune your M4A output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original WMA files are removed from our servers right after. Also see:Mass MP3 to FLAC conversion.
Drop your WMA files here to convert to M4A, or click to browse
Converts .wma to M4A (.m4a) in HD quality — bulk, free, no signup
Choose FilesWMA vs M4A — File Format Comparison
See how WMA and M4A compare across file extension, MIME type, compression, and feature support. Related:AMR to M4A conversion tool online.
| Feature | WMA | M4A |
|---|---|---|
| File Extension | .wma | .m4a |
| MIME Type | audio/x-ms-wma | audio/mp4 |
| Compression Type | Lossy | Lossy |
| Metadata Support | Yes | Yes |
What Is WMA Format?
Windows Media Audio — Microsoft's proprietary lossy audio codec bundled with Windows Media Player, commonly found in legacy Windows media libraries and early-2000s digital music stores. See also:AIFF to M4A converter - no registration.
- Compression: Lossy
- Tags & Metadata: Supported
What Is M4A Format?
MPEG-4 Audio — AAC audio in an MP4 container, the standard format for Apple Music, iTunes purchases, and iPhone voice memos, offering better quality than MP3 at equivalent bitrates. You might also need:How to batch convert M4P to iPod Audio?.
- Compression: Lossy
- Tags & Metadata: Supported