Bulk MP3 to CAF Converter Online — Free HD Quality
Drag and drop your multiple MP3 files into this 100% free online MP3 to CAF converter (.mp3 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 MP3 files are removed from our servers right after. Also see:Batch process WMA to MP3.
Drop your MP3 files here to convert to CAF, or click to browse
Converts .mp3 to CAF (.caf) in HD quality — bulk, free, no signup
Choose FilesMP3 vs CAF — File Format Comparison
See how MP3 and CAF compare across file extension, MIME type, compression, and feature support. Related:Free WAV to MP2 - no account needed.
| Feature | MP3 | CAF |
|---|---|---|
| File Extension | .mp3 | .caf |
| MIME Type | audio/mpeg | audio/x-caf |
| 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:Queue APE to FLAC conversions.
- 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. You might also need:Bulk convert M4R to OPUS.
- Compression: Lossless
- Tags & Metadata: Supported