Bulk CAF to AMR Converter Online — Free HD Quality
Drag and drop your multiple CAF files into this 100% free online CAF to AMR converter (.caf to .amr), and click the Convert button to bulk convert them to AMR format in HD quality. Use the quality slider to fine-tune your AMR output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original CAF files are removed from our servers right after. Also see:Convert AAC to OGG.
Drop your CAF files here to convert to AMR, or click to browse
Converts .caf to AMR (.amr) in HD quality — bulk, free, no signup
Choose FilesCAF vs AMR — File Format Comparison
See how CAF and AMR compare across file extension, MIME type, compression, and feature support. Related:CAF to OPUS - free, no signup.
| Feature | CAF | AMR |
|---|---|---|
| File Extension | .caf | .amr |
| MIME Type | audio/x-caf | audio/amr |
| Compression Type | Lossless | Lossy |
| Metadata Support | Yes | No |
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. See also:Convert CAF to MP2 free.
- Compression: Lossless
- Tags & Metadata: Supported
What Is AMR Format?
Adaptive Multi-Rate — the standard voice codec for GSM and UMTS mobile networks, used in phone call recordings and voice messages; delivers compact files optimised for speech at 8 kHz.
- Compression: Lossy
- Tags & Metadata: Not supported