Bulk WMA to M4R Converter Online — Free HD Quality
Drag and drop your multiple WMA files into this 100% free online WMA to M4R converter (.wma to .m4r), and click the Convert button to bulk convert them to M4R format in HD quality. Use the quality slider to fine-tune your M4R 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:Convert multiple WAV to M4A.
Drop your WMA files here to convert to M4R, or click to browse
Converts .wma to M4R (.m4r) in HD quality — bulk, free, no signup
Choose FilesWMA vs M4R — File Format Comparison
See how WMA and M4R compare across file extension, MIME type, compression, and feature support. Related:How to turn WMA into M4B?.
| Feature | WMA | M4R |
|---|---|---|
| File Extension | .wma | .m4r |
| 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:Convert multiple WMA to AMR.
- Compression: Lossy
- Tags & Metadata: Supported
What Is M4R Format?
iPhone Ringtone — AAC audio in an MP4 container under 40 seconds, the format iTunes and iPhone use for custom ringtones; identical to M4A in encoding but recognised by iOS as a ringtone file.
- Compression: Lossy
- Tags & Metadata: Supported