Bulk AIF to M4R Converter Online — Free HD Quality
Drag and drop your multiple AIF files into this 100% free online AIF to M4R converter (.aif 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 AIF files are removed from our servers right after. Also see:Online AIFC to MP3 converter tool.
Drop your AIF files here to convert to M4R, or click to browse
Converts .aif to M4R (.m4r) in HD quality — bulk, free, no signup
Choose FilesAIF vs M4R — File Format Comparison
See how AIF and M4R compare across file extension, MIME type, compression, and feature support. Related:Bulk AIF to WMA tool.
| Feature | AIF | M4R |
|---|---|---|
| File Extension | .aif | .m4r |
| MIME Type | audio/aiff | audio/mp4 |
| Compression Type | Lossless | Lossy |
| Metadata Support | Yes | Yes |
What Is AIF Format?
Audio Interchange File Format (short extension) — the .aif variant of AIFF used by older Apple software and some DAWs; functionally identical to .aiff with the same uncompressed PCM quality. See also:Online AIF to CAF converter tool.
- Compression: Lossless
- 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