presentation Format
Keynote File Format
Apple Keynote is the presentation format created by Apple for macOS and iOS. Acclaimed for cinematic typography, advanced transitions, and fluid animations, Keynote packages slides, shapes, and media inside a compressed container.
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Technical Specifications
| Extensions | .key |
| MIME Types | application/x-iwork-keynote-sffkey, application/vnd.apple.keynote |
| Category | Presentation |
| Engine Tier | tier2-wasm |
| Magic Bytes / Sniffing | 0x50 0x4B 0x03 0x04 |
| Opens With | Apple Keynote, iCloud for Web, LibreOffice Impress |
| Good For | High-polish keynote speeches, cinematic product announcements, and design-led pitch decks. |
| Not Recommended For | Direct presentations on non-Apple hardware without prior conversion to PPTX or PDF. |