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Bulk M4R to AIF Converter Online — Free HD Quality

Drag and drop your multiple M4R files into this 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 — your original M4R files are removed from our servers right after.

To:
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PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more

Max 100MB per file

M4R vs AIF — File Format Comparison

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.

  • 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

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