Khronos texture filefor OpenGL and OpenGL ES applications
application/octet-stream
Magic Bytes
Offset: 0
AC 9E BD 8F 00 00
The Khronos Texture (KTX) format is a lightweight container standard developed by the Khronos Group for efficiently storing and transferring texture data. Designed primarily for OpenGL and OpenGL ES applications, it allows graphics processing units to load textures directly without unnecessary conversion or processing overhead. As a binary container holding standard image data and metadata, the format is considered safe, though a newer version 2.0 has since introduced advanced supercompression features.
Validation Code
How to validate .ktx files in Python
Python
def is_ktx(file_path: str) -> bool:
"""Check if file is a valid KTX by magic bytes."""
signature = bytes([0xAC, 0x9E, 0xBD, 0x8F, 0x00, 0x00])
with open(file_path, "rb") as f:
return f.read(6) == signatureHow to validate .ktx files in Node.js
Node.js
function isKTX(buffer: Buffer): boolean {
const signature = Buffer.from([0xAC, 0x9E, 0xBD, 0x8F, 0x00, 0x00]);
return buffer.subarray(0, 6).equals(signature);
}
Go
func IsKTX(data []byte) bool {
signature := []byte{0xAC, 0x9E, 0xBD, 0x8F, 0x00, 0x00}
if len(data) < 6 {
return false
}
return bytes.Equal(data[:6], signature)
}API Endpoint
GET
/api/v1/ktx
curl https://filesignature.org/api/v1/ktx