StuffIt compressed archive (.sit)
.sit file signature | application/x-stuffit
StuffIt compressed archive
Magic Bytes
Offset 0
53 74 75 66 66 49 74
Sources: Apache Tika
All Known Signatures
3 signature variants are documented for .sit files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| 53 74 75 66 66 49 74 | 0 | Apache Tika |
| 53 49 54 21 00 | 0 | Gary Kessler |
| 53 74 75 66 66 49 74 20 28 63 29 31 39 39 37 2D | 0 | Gary Kessler |
Extension
.sit
MIME Type
application/x-stuffit
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .sit files in Python
def is_sit(file_path: str) -> bool:
"""Check if file is a valid SIT by magic bytes."""
signature = bytes([0x53, 0x74, 0x75, 0x66, 0x66, 0x49, 0x74])
with open(file_path, "rb") as f:
return f.read(7) == signatureHow to validate .sit files in Node.js
function isSIT(buffer: Buffer): boolean {
const signature = Buffer.from([0x53, 0x74, 0x75, 0x66, 0x66, 0x49, 0x74]);
return buffer.subarray(0, 7).equals(signature);
}How to validate .sit files in Go
func IsSIT(data []byte) bool {
signature := []byte{0x53, 0x74, 0x75, 0x66, 0x66, 0x49, 0x74}
if len(data) < 7 {
return false
}
return bytes.Equal(data[:7], signature)
}API Endpoint
/api/v1/sit
curl https://filesignature.org/api/v1/sit
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .sit file?
A .sit file is a StuffIt compressed archive file. StuffIt compressed archive
What are the magic bytes for .sit files?
The magic bytes for StuffIt compressed archive files are 53 74 75 66 66 49 74 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .sit file?
To validate a .sit file, read the first bytes of the file and compare them against the known magic bytes (53 74 75 66 66 49 74) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .sit files?
The primary MIME type for .sit files is application/x-stuffit.
Is it safe to open .sit files?
StuffIt compressed archive (.sit) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.