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EZ3 (.ez3)

.ez3 file signature | application/vnd.ezpix-package

EZ3 is a legacy audio sample file format used with E-mu Systems' Emulator III synthesizer and related software. It stores instrument samples for sampling, playback, and sound design in music production and archival libraries. As an older format, it is now uncommon, but files are generally safe to open with compatible audio tools, though support in modern editors may be limited.

Safe

Magic Bytes

Offset 0
45 4D 55 33

Sources: Wikipedia

Extension

.ez3

MIME Type

application/vnd.ezpix-package

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .ez3 files in Python

Python 
def is_ez3(file_path: str) -> bool:
    """Check if file is a valid EZ3 by magic bytes."""
    signature = bytes([0x45, 0x4D, 0x55, 0x33])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .ez3 files in Node.js

Node.js 
function isEZ3(buffer: Buffer): boolean {
  const signature = Buffer.from([0x45, 0x4D, 0x55, 0x33]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .ez3 files in Go

Go 
func IsEZ3(data []byte) bool {
    signature := []byte{0x45, 0x4D, 0x55, 0x33}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

GET /api/v1/ez3
curl https://filesignature.org/api/v1/ez3

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .ez3 file?

A .ez3 file is identified by the magic bytes 45 4D 55 33 at byte offset 0. EZ3 is a legacy audio sample file format used with E-mu Systems' Emulator III synthesizer and related software. It stores instrument samples for sampling, playback, and sound design in music production and archival libraries. As an older format, it is now uncommon, but files are generally safe to open with compatible audio tools, though support in modern editors may be limited.

What are the magic bytes for .ez3 files?

The magic bytes for EZ3 files are 45 4D 55 33 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .ez3 file?

To validate a .ez3 file, read the first bytes of the file and compare them against the known magic bytes (45 4D 55 33) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .ez3 files?

The primary MIME type for .ez3 files is application/vnd.ezpix-package.

Is it safe to open .ez3 files?

EZ3 (.ez3) 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.