Bulk MP3 to ALAC Converter Online — Free HD Quality
Drag and drop your multiple MP3 files into this 100% 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 — no signup and no downloads needed, and your original MP3 files are removed from our servers right after. Also see:Transform MP3 to M4A.
Drop your MP3 files here to convert to ALAC, or click to browse
Converts .mp3 to ALAC (.alac) in HD quality — bulk, free, no signup
Choose FilesMP3 vs ALAC — File Format Comparison
See how MP3 and ALAC compare across file extension, MIME type, compression, and feature support. Related:Free WAV to ALAC - no account needed.
| 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. See also:How to convert PCM to MP3?.
- 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. You might also need:Quick AIF to IPHONE online converter.
- Compression: Lossless
- Tags & Metadata: Supported