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SDB (.sdb)

.sdb file signature | application/octet-stream

Windows customized database

Safe

Magic Bytes

Offset 8
73 64 62 66

Sources: Wikipedia

Extension

.sdb

MIME Type

application/octet-stream

Byte Offset

8

Risk Level

Safe

Validation Code

How to validate .sdb files in Python

Python
def is_sdb(file_path: str) -> bool:
    """Check if file is a valid SDB by magic bytes."""
    signature = bytes([0x73, 0x64, 0x62, 0x66])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .sdb files in Node.js

Node.js
function isSDB(buffer: Buffer): boolean {
  const signature = Buffer.from([0x73, 0x64, 0x62, 0x66]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .sdb files in Go

Go
func IsSDB(data []byte) bool {
    signature := []byte{0x73, 0x64, 0x62, 0x66}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .sdb file?

A .sdb file is a SDB file. Windows customized database

What are the magic bytes for .sdb files?

The magic bytes for SDB files are 73 64 62 66 at byte offset 8. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .sdb file?

To validate a .sdb file, read the first bytes of the file and compare them against the known magic bytes (73 64 62 66) at offset 8. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .sdb files?

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

Is it safe to open .sdb files?

SDB (.sdb) 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.