Bulk AIFF to MP3 Converter Online — Free HD Quality
Drag and drop your multiple AIFF files into this free online AIFF to MP3 converter (.aiff to .mp3), and click the Convert button to bulk convert them to MP3 format in HD quality. Use the quality slider to fine-tune your MP3 output, then download your converted files one by one or as a single ZIP — your original AIFF files are removed from our servers right after.
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PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
AIFF vs MP3 — File Format Comparison
| Feature | AIFF | MP3 |
|---|---|---|
| File Extension | .aiff | .mp3 |
| MIME Type | audio/aiff | audio/mpeg |
| Compression Type | Lossless | Lossy |
| Metadata Support | Yes | Yes |
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
What Is MP3 Format?
MPEG-1 Audio Layer III — the world's most popular compressed audio format, balancing sound quality with small file sizes for music streaming, downloads, and portable devices.
- Compression: Lossy
- Tags & Metadata: Supported
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