Skip to content

YUVN (.yuvn)

.yuvn file signature | application/octet-stream

YUVN is a file format associated with the YUVN software ecosystem and maintained by its original application developers. It is used for storing and exchanging YUV-based media data in workflows that require preservation of color information for processing, conversion, or playback. The format is generally considered safe to handle, and no significant security concerns are widely documented, though files from untrusted sources should still be validated by the software that opens them.

Safe

Magic Bytes

Offset 0
46 4F 52 4D

Sources: Wikipedia

All Known Signatures

2 signature variants are documented for .yuvn files across multiple sources.

Hex Signature Offset Sources
46 4F 52 4D 0 Wikipedia
59 55 56 4E 0 Wikipedia

Extension

.yuvn

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .yuvn files in Python

Python
def is_yuvn(file_path: str) -> bool:
    """Check if file is a valid YUVN by magic bytes."""
    signature = bytes([0x46, 0x4F, 0x52, 0x4D])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .yuvn files in Node.js

Node.js
function isYUVN(buffer: Buffer): boolean {
  const signature = Buffer.from([0x46, 0x4F, 0x52, 0x4D]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .yuvn files in Go

Go
func IsYUVN(data []byte) bool {
    signature := []byte{0x46, 0x4F, 0x52, 0x4D}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .yuvn file?

A .yuvn file is identified by the magic bytes 46 4F 52 4D at byte offset 0. YUVN is a file format associated with the YUVN software ecosystem and maintained by its original application developers. It is used for storing and exchanging YUV-based media data in workflows that require preservation of color information for processing, conversion, or playback. The format is generally considered safe to handle, and no significant security concerns are widely documented, though files from untrusted sources should still be validated by the software that opens them.

What are the magic bytes for .yuvn files?

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

How do I validate a .yuvn file?

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

What is the MIME type for .yuvn files?

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

Is it safe to open .yuvn files?

YUVN (.yuvn) 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.