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Bulk RMI to ALAC Converter Online — Free HD Quality

Drag and drop your multiple RMI files into this free online RMI to ALAC converter (.rmi to .alac), and click the Convert button to bulk convert them to ALAC format in HD quality. Use the quality slider to fine-tune your ALAC output, then download your converted files one by one or as a single ZIP — your original RMI files are removed from our servers right after.

To:
85%

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Max 100MB per file

RMI vs ALAC — File Format Comparison

Feature RMI ALAC
File Extension .rmi .alac
MIME Type audio/midi audio/mp4
Compression Type Varies Lossless
Metadata Support Yes Yes

What Is RMI Format?

RIFF MIDI — a Windows variant of the MIDI format wrapped in a RIFF container (the same container used by WAV), produced by older Windows Media Player and Cakewalk software.

  • Compression: Varies
  • Tags & Metadata: Supported

What Is ALAC Format?

Apple Lossless Audio Codec — Apple's open-source lossless compression stored in an MP4 container, offering bit-perfect quality with 40–60% smaller files than AIFF; the native lossless format for Apple Music and iTunes.

  • Compression: Lossless
  • Tags & Metadata: Supported

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