Bulk AAC to ALAC Converter Online — Free HD Quality
Drag and drop your multiple AAC files into this 100% free online AAC to ALAC converter (.aac 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 AAC files are removed from our servers right after. Also see:FLAC to AAC converter.
Drop your AAC files here to convert to ALAC, or click to browse
Converts .aac to ALAC (.alac) in HD quality — bulk, free, no signup
Choose FilesAAC vs ALAC — File Format Comparison
See how AAC and ALAC compare across file extension, MIME type, compression, and feature support. Related:AAC to CAF converter - no registration.
| Feature | AAC | ALAC |
|---|---|---|
| File Extension | .aac | .alac |
| MIME Type | audio/aac | audio/mp4 |
| Compression Type | Lossy | Lossless |
| Metadata Support | Yes | Yes |
What Is AAC Format?
Advanced Audio Coding — the successor to MP3 adopted by Apple, YouTube, and mobile platforms; delivers better quality than MP3 at the same bitrate, especially below 128 kbps.
- 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