Firebird and Interbase database files
application/octet-stream
Magic Bytes
Offset: 0
01 01 47 19 A4 00 00 00 00 00 00 00
The Firebird Database (FDB) format is a relational database container maintained by the Firebird Project, originally derived from Borland InterBase source code. These files store tables, indexes, and stored procedures for various desktop and client-server applications requiring an open-source SQL management system. While the format is considered safe, accessing the internal binary data requires the specific Firebird or InterBase database engine to ensure data integrity and prevent corruption.
Validation Code
How to validate .fdb files in Python
Python
def is_fdb(file_path: str) -> bool:
"""Check if file is a valid FDB by magic bytes."""
signature = bytes([0x01, 0x01, 0x47, 0x19, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])
with open(file_path, "rb") as f:
return f.read(12) == signatureHow to validate .fdb files in Node.js
Node.js
function isFDB(buffer: Buffer): boolean {
const signature = Buffer.from([0x01, 0x01, 0x47, 0x19, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]);
return buffer.subarray(0, 12).equals(signature);
}
Go
func IsFDB(data []byte) bool {
signature := []byte{0x01, 0x01, 0x47, 0x19, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
if len(data) < 12 {
return false
}
return bytes.Equal(data[:12], signature)
}API Endpoint
GET
/api/v1/fdb
curl https://filesignature.org/api/v1/fdb