MKS (.mks)
.mks file signature | application/octet-stream
MKS is a Matroska-based media container format developed by the Matroska project and maintained by the Matroska community. It is used to store video, audio, subtitles, and metadata in a single file, and is supported by many media players, editors, and streaming tools, including WebM-related workflows. As a container format, it is generally safe, though embedded tracks and metadata can still carry malicious content in untrusted files.
Magic Bytes
Offset 0
1A 45 DF A3
Sources: Wikipedia
Extension
.mks
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .mks files in Python
def is_mks(file_path: str) -> bool:
"""Check if file is a valid MKS by magic bytes."""
signature = bytes([0x1A, 0x45, 0xDF, 0xA3])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .mks files in Node.js
function isMKS(buffer: Buffer): boolean {
const signature = Buffer.from([0x1A, 0x45, 0xDF, 0xA3]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .mks files in Go
func IsMKS(data []byte) bool {
signature := []byte{0x1A, 0x45, 0xDF, 0xA3}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/mks
curl https://filesignature.org/api/v1/mks
See the full API documentation for all endpoints and parameters.
Related Formats
Frequently Asked Questions
What is a .mks file?
A .mks file is identified by the magic bytes 1A 45 DF A3 at byte offset 0. MKS is a Matroska-based media container format developed by the Matroska project and maintained by the Matroska community. It is used to store video, audio, subtitles, and metadata in a single file, and is supported by many media players, editors, and streaming tools, including WebM-related workflows. As a container format, it is generally safe, though embedded tracks and metadata can still carry malicious content in untrusted files.
What are the magic bytes for .mks files?
The magic bytes for MKS files are 1A 45 DF A3 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .mks file?
To validate a .mks file, read the first bytes of the file and compare them against the known magic bytes (1A 45 DF A3) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .mks files?
There is no officially registered MIME type for .mks files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .mks files?
MKS (.mks) 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.