Bulk MID to CAF Converter Online — Free HD Quality
Drag and drop your multiple MID files into this free online MID to CAF converter (.mid 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 MID files are removed from our servers right after.
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PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
MID vs CAF — File Format Comparison
| Feature | MID | CAF |
|---|---|---|
| File Extension | .mid | .caf |
| MIME Type | audio/midi | audio/x-caf |
| Compression Type | Varies | Lossless |
| Metadata Support | Yes | Yes |
What Is MID Format?
MIDI File — Musical Instrument Digital Interface note-event data synthesised to audio using a soundfont; the .mid format is the universal standard for exchanging musical scores between DAWs, keyboards, and sequencers.
- Compression: Varies
- 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
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