Bulk AC3 to CAF Converter Online — Free HD Quality
Drag and drop your multiple AC3 files into this free online AC3 to CAF converter (.ac3 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 — your original AC3 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
AC3 vs CAF — File Format Comparison
| Feature | AC3 | CAF |
|---|---|---|
| File Extension | .ac3 | .caf |
| MIME Type | audio/ac3 | audio/x-caf |
| Compression Type | Lossy | Lossless |
| Metadata Support | No | Yes |
What Is AC3 Format?
Dolby Digital AC-3 — Dolby's multi-channel surround sound codec used in DVD, Blu-ray, and broadcast television; commonly encountered when extracting audio tracks from home theatre content.
- Compression: Lossy
- Tags & Metadata: Not 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
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