All File Signatures & Extensions
Search by extension, format name, or MIME type to jump straight to a canonical signature page with validation code and source attribution.
ISO-9660 CD Disc ImageThis signature usually occurs at byte offset 32769
Primary Hex
43 44 30 30 31
ISZ
Primary Hex
49 73 5A 21
RealPlayer video file
Primary Hex
2E 52 45 43
J2C
Primary Hex
FF 4F FF 51
J2K
Primary Hex
00 00 00 0C 6A 50 20 20 0D 0A 87 0A
Java archive; compressed file package for classes and data
Primary Hex
50 4B 03 04
JBIG2 image file
Primary Hex
97 4A 42 32 0D 0A 1A 0A
JBIG2
Primary Hex
97 4A 42 32 0D 0A 1A 0A
Java Cryptography Extension keystorefile
Primary Hex
CE CE CE CE
JDF
Primary Hex
4A 45 4F 4C 2E 4E 4D 52
JFI
Primary Hex
FF D8 FF
JPEG/JFIF graphics file
Primary Hex
FF D8 FF
JIF
Primary Hex
FF D8 FF
JavaKeyStore file
Primary Hex
FE ED FE ED
JNG
Primary Hex
8B 4A 4E 47
MS Windows journal file
Primary Hex
4E 42 2A 00
JOURNAL
Primary Hex
4C 50 4B 53 48 48 52 48
Various JPEG-2000 image file formats
Primary Hex
00 00 00 0C 6A 50 20 20 0D 0A 87 0A
JPC
Primary Hex
00 00 00 0C 6A 50 20 20 0D 0A 87 0A
Generic JPEG Image file
Primary Hex
FF D8 FF
Generic JPEG Image file
Primary Hex
FF D8 FF
JPF
Primary Hex
00 00 00 0C 6A 50 20 20 0D 0A 87 0A
Digital camera JPG usingExchangeable Image File Format
Primary Hex
FF D8
JPG2
Primary Hex
00 00 00 0C 6A 50 20 20 0D 0A 87 0A