Bulk M4A to CAF Converter Online — Free HD Quality
Drag and drop your multiple M4A files into this 100% free online M4A to CAF converter (.m4a to .caf), and click the Convert button to bulk convert them to CAF format in HD quality. Use the quality slider to fine-tune your CAF output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original M4A files are removed from our servers right after. Also see:Free WAV to FLAC converter.
Drop your M4A files here to convert to CAF, or click to browse
Converts .m4a to CAF (.caf) in HD quality — bulk, free, no signup
Choose FilesM4A vs CAF — File Format Comparison
See how M4A and CAF compare across file extension, MIME type, compression, and feature support. Related:Convert multiple AAC to OGA.
| Feature | M4A | CAF |
|---|---|---|
| File Extension | .m4a | .caf |
| MIME Type | audio/mp4 | audio/x-caf |
| Compression Type | Lossy | Lossless |
| Metadata Support | Yes | Yes |
What Is M4A Format?
MPEG-4 Audio — AAC audio in an MP4 container, the standard format for Apple Music, iTunes purchases, and iPhone voice memos, offering better quality than MP3 at equivalent bitrates. See also:Easy WMA to AAC converter.
- Compression: Lossy
- Tags & Metadata: Supported
What Is CAF Format?
Core Audio Format — Apple's flexible container for macOS and iOS supporting any codec (AAC, ALAC, PCM, MP3) with no file-size limit, used internally by Xcode, Logic Pro, and macOS system sounds.
- Compression: Lossless
- Tags & Metadata: Supported