Skip to content

YUV (.yuv)

.yuv file signature | application/octet-stream

IFFYUV Image

Safe

Magic Bytes

Offset 0
46 4F 52 4D 59 55 56 4E

Sources: Wikipedia

Extension

.yuv

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .yuv files in Python

Python
def is_yuv(file_path: str) -> bool:
    """Check if file is a valid YUV by magic bytes."""
    signature = bytes([0x46, 0x4F, 0x52, 0x4D, 0x59, 0x55, 0x56, 0x4E])
    with open(file_path, "rb") as f:
        return f.read(8) == signature

How to validate .yuv files in Node.js

Node.js
function isYUV(buffer: Buffer): boolean {
  const signature = Buffer.from([0x46, 0x4F, 0x52, 0x4D, 0x59, 0x55, 0x56, 0x4E]);
  return buffer.subarray(0, 8).equals(signature);
}

How to validate .yuv files in Go

Go
func IsYUV(data []byte) bool {
    signature := []byte{0x46, 0x4F, 0x52, 0x4D, 0x59, 0x55, 0x56, 0x4E}
    if len(data) < 8 {
        return false
    }
    return bytes.Equal(data[:8], signature)
}

API Endpoint

GET /api/v1/yuv
curl https://filesignature.org/api/v1/yuv

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .yuv file?

A .yuv file is a YUV file. IFFYUV Image

What are the magic bytes for .yuv files?

The magic bytes for YUV files are 46 4F 52 4D 59 55 56 4E at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .yuv file?

To validate a .yuv file, read the first bytes of the file and compare them against the known magic bytes (46 4F 52 4D 59 55 56 4E) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .yuv files?

There is no officially registered MIME type for .yuv files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .yuv files?

YUV (.yuv) 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.