Bulk AAC to ALAC Converter Online — Free HD Quality
Drag and drop your multiple AAC files into this 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 — your original AAC files are removed from our servers right after.
Drop images here or click to browse
PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
AAC vs ALAC — File Format Comparison
| 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
Related Converters
- Quick 3FR to RAS online converter
- Convert AAC to JXL
- Bulk JP2 to WEBP tool
- Switch K25 to XPM format
- M4A to WAVE conversion
- Save M4B as AIFC
- Free M4R to TIFF converter
- Transform OGA to ALAC
- Switch PDF to ICO format
- Simple PFM to SGI tool
- Convert multiple PICT to BMP
- Free online PICT to XBM tool
- Convert multiple SR2 to DDS
- Transform WAVE to BMP
- X3F to JPEG 2000 conversion
- Convert AAC to other formats
- All ALAC conversion options
- All Audio format converters
- All conversion tools