Musical Instrument Digital Interface (.mid)
.mid file signature | audio/midi
Musical Instrument Digital Interface (MIDI) sound file
Magic Bytes
Offset 0
4D 54 68 64
Sources: Apache Tika, Wikipedia, Gary Kessler, Neil Harvey FileSignatures
Extension
.mid
MIME Type
audio/midi
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .mid files in Python
def is_mid(file_path: str) -> bool:
"""Check if file is a valid MID by magic bytes."""
signature = bytes([0x4D, 0x54, 0x68, 0x64])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .mid files in Node.js
function isMID(buffer: Buffer): boolean {
const signature = Buffer.from([0x4D, 0x54, 0x68, 0x64]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .mid files in Go
func IsMID(data []byte) bool {
signature := []byte{0x4D, 0x54, 0x68, 0x64}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/mid
curl https://filesignature.org/api/v1/mid
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .mid file?
A .mid file is a Musical Instrument Digital Interface file. Musical Instrument Digital Interface (MIDI) sound file
What are the magic bytes for .mid files?
The magic bytes for Musical Instrument Digital Interface files are 4D 54 68 64 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .mid file?
To validate a .mid file, read the first bytes of the file and compare them against the known magic bytes (4D 54 68 64) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .mid files?
The primary MIME type for .mid files is audio/midi.
Is it safe to open .mid files?
Musical Instrument Digital Interface (.mid) 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.