Bulk MP3 to ALAC Converter Online — Free HD Quality
Drag and drop your multiple MP3 files into this free online MP3 to ALAC converter (.mp3 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 MP3 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
MP3 vs ALAC — File Format Comparison
| Feature | MP3 | ALAC |
|---|---|---|
| File Extension | .mp3 | .alac |
| MIME Type | audio/mpeg | audio/mp4 |
| Compression Type | Lossy | Lossless |
| Metadata Support | Yes | Yes |
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
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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