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Bulk ALAC to AIFF Converter Online — Free HD Quality

Drag and drop your multiple ALAC files into this free online ALAC to AIFF converter (.alac 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 — your original ALAC files are removed from our servers right after.

To:
85%

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Max 100MB per file

ALAC vs AIFF — File Format Comparison

Feature ALAC AIFF
File Extension .alac .aiff
MIME Type audio/mp4 audio/aiff
Compression Type Lossless Lossless
Metadata Support Yes Yes

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

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.

  • Compression: Lossless
  • Tags & Metadata: Supported

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