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UC2 (.uc2)

.uc2 file signature | application/x-uc2-compressed

Safe

Magic Bytes

Offset 0
55 43 32 1A

Sources: Apache Tika

Extension

.uc2

MIME Type

application/x-uc2-compressed

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .uc2 files in Python

Python 
def is_uc2(file_path: str) -> bool:
    """Check if file is a valid UC2 by magic bytes."""
    signature = bytes([0x55, 0x43, 0x32, 0x1A])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .uc2 files in Node.js

Node.js 
function isUC2(buffer: Buffer): boolean {
  const signature = Buffer.from([0x55, 0x43, 0x32, 0x1A]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .uc2 files in Go

Go 
func IsUC2(data []byte) bool {
    signature := []byte{0x55, 0x43, 0x32, 0x1A}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

GET /api/v1/uc2
curl https://filesignature.org/api/v1/uc2

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .uc2 file?

A .uc2 file is a UC2 file.

What are the magic bytes for .uc2 files?

The magic bytes for UC2 files are 55 43 32 1A at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .uc2 file?

To validate a .uc2 file, read the first bytes of the file and compare them against the known magic bytes (55 43 32 1A) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .uc2 files?

The primary MIME type for .uc2 files is application/x-uc2-compressed.

Is it safe to open .uc2 files?

UC2 (.uc2) 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.