Bulk M4R to AIFF Converter Online — Free HD Quality
Drag and drop your multiple M4R files into this 100% free online M4R to AIFF converter (.m4r to .aiff), and click the Convert button to bulk convert them to AIFF format in HD quality. Use the quality slider to fine-tune your AIFF output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original M4R files are removed from our servers right after. Also see:Switch AAC to MP3 format.
Drop your M4R files here to convert to AIFF, or click to browse
Converts .m4r to AIFF (.aiff) in HD quality — bulk, free, no signup
Choose FilesM4R vs AIFF — File Format Comparison
See how M4R and AIFF compare across file extension, MIME type, compression, and feature support. Related:Quick M4A to M4R online converter.
| Feature | M4R | AIFF |
|---|---|---|
| File Extension | .m4r | .aiff |
| MIME Type | audio/mp4 | audio/aiff |
| Compression Type | Lossy | Lossless |
| Metadata Support | Yes | Yes |
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. See also:OPUS to OGG converter.
- Compression: Lossy
- Tags & Metadata: Supported
What Is AIFF Format?
Audio Interchange File Format — Apple's uncompressed audio standard functionally equivalent to WAV but preferred in professional Apple audio workflows and GarageBand projects. You might also need:Simple WMA to 3GA tool.
- Compression: Lossless
- Tags & Metadata: Supported