0xFEEDFACE

Mach-O binary (32-bit)

category: file-signature
normalized: feedface
confirmed: 2026-05-14
lookups: 1
source: https://en.wikipedia.org/wiki/Mach-O

Magic number of a 32-bit Mach-O executable on macOS/iOS. The 64-bit variant is 0xFEEDFACF.

Similar magic numbers

value	name	category
FE ED FA CF	OS X ABI Mach-O binary (64-bit)	file-signature
FE ED FE ED	JavaKeyStore	file-signature
FE EF	Symantex Ghost image file	file-signature
0xFEEEFEEE	Win32 freed heap	sentinel
FE FF	UTF-16-UCS-2 file	file-signature