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TBZ (.tbz)

.tbz file signature | application/x-bzip

TBZ is a compressed archive format based on bzip2 compression, originally created by Julian Seward and supported by the bzip2 ecosystem and archive utilities. It is used to package and compress tar archives for software distribution, source code releases, backups, and portable transfer between Unix-like systems. The format is generally safe, though archived contents should still be reviewed before extraction; it is a legacy convention in environments that favor tar.gz or tar.bz2.

Safe

Magic Bytes

Offset 0
42 5A 30

Sources: Apache Tika

Extension

.tbz

MIME Type

application/x-bzip

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .tbz files in Python

Python
def is_tbz(file_path: str) -> bool:
    """Check if file is a valid TBZ by magic bytes."""
    signature = bytes([0x42, 0x5A, 0x30])
    with open(file_path, "rb") as f:
        return f.read(3) == signature

How to validate .tbz files in Node.js

Node.js
function isTBZ(buffer: Buffer): boolean {
  const signature = Buffer.from([0x42, 0x5A, 0x30]);
  return buffer.subarray(0, 3).equals(signature);
}

How to validate .tbz files in Go

Go
func IsTBZ(data []byte) bool {
    signature := []byte{0x42, 0x5A, 0x30}
    if len(data) < 3 {
        return false
    }
    return bytes.Equal(data[:3], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Related Formats

Frequently Asked Questions

What is a .tbz file?

A .tbz file is identified by the magic bytes 42 5A 30 at byte offset 0. TBZ is a compressed archive format based on bzip2 compression, originally created by Julian Seward and supported by the bzip2 ecosystem and archive utilities. It is used to package and compress tar archives for software distribution, source code releases, backups, and portable transfer between Unix-like systems. The format is generally safe, though archived contents should still be reviewed before extraction; it is a legacy convention in environments that favor tar.gz or tar.bz2.

What are the magic bytes for .tbz files?

The magic bytes for TBZ files are 42 5A 30 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .tbz file?

To validate a .tbz file, read the first bytes of the file and compare them against the known magic bytes (42 5A 30) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .tbz files?

The primary MIME type for .tbz files is application/x-bzip.

Is it safe to open .tbz files?

TBZ (.tbz) 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.