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Bulk M4R to AIF Converter Online — Free HD Quality

Drag and drop your multiple M4R files into this 100% free online M4R to AIF converter (.m4r to .aif), and click the Convert button to bulk convert them to AIF format in HD quality. Use the quality slider to fine-tune your AIF 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:MP3 to OGA converter - no registration.

Drop your M4R files here to convert to AIF, or click to browse

Converts .m4r to AIF (.aif) in HD quality — bulk, free, no signup

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M4R vs AIF — File Format Comparison

See how M4R and AIF compare across file extension, MIME type, compression, and feature support. Related:How to convert M4R to MP2?.

Feature M4R AIF
File Extension .m4r .aif
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:Best M4R to ALAC converter online.

  • Compression: Lossy
  • Tags & Metadata: Supported

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.

  • Compression: Lossless
  • Tags & Metadata: Supported