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JNG (.jng)

.jng file signature | video/x-jng

Safe

Magic Bytes

Offset 0
8B 4A 4E 47

Sources: Apache Tika

Extension

.jng

MIME Type

video/x-jng

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .jng files in Python

Python
def is_jng(file_path: str) -> bool:
    """Check if file is a valid JNG by magic bytes."""
    signature = bytes([0x8B, 0x4A, 0x4E, 0x47])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .jng files in Node.js

Node.js
function isJNG(buffer: Buffer): boolean {
  const signature = Buffer.from([0x8B, 0x4A, 0x4E, 0x47]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .jng files in Go

Go
func IsJNG(data []byte) bool {
    signature := []byte{0x8B, 0x4A, 0x4E, 0x47}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .jng file?

A .jng file is a JNG file.

What are the magic bytes for .jng files?

The magic bytes for JNG files are 8B 4A 4E 47 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .jng file?

To validate a .jng file, read the first bytes of the file and compare them against the known magic bytes (8B 4A 4E 47) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .jng files?

The primary MIME type for .jng files is video/x-jng.

Is it safe to open .jng files?

JNG (.jng) 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.