MAC Address Spoofer

A command-line tool to spoof your network interface's MAC address on Linux systems.

What is a MAC Address?

A Media Access Control (MAC) address is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. This identifier is used in most IEEE 802 networking technologies, including Ethernet, Wi-Fi, and Bluetooth.

Changing your MAC address can be useful for:

• Privacy - Prevent tracking across networks
• Testing - Simulate different network devices
• Bypassing restrictions - Some networks filter by MAC address

MAC Address Structure

A MAC address is a 12-digit hexadecimal number (6 bytes), typically represented in colon-hexadecimal notation (e.g., 00:1A:2B:3C:4D:5E).

Bytes	Name	Description
First 3 bytes	OUI (Organizationally Unique Identifier)	Identifies the manufacturer
Last 3 bytes	NIC (Network Interface Controller)	Device-specific identifier

Features

• 🎲 Random MAC generation - Generate safe, locally-administered unicast addresses
• 🏭 Vendor spoofing - Mimic devices from Samsung, Apple, Intel, Microsoft, Huawei, Google, or Cisco
• 🖥️ Interactive TUI - Easy to use text interface
• ⚡ Auto mode - Non-interactive operation for scripts
• 🔧 CI mode - Designed for automated testing pipelines

Installation

Via pip (recommended)

pip install macspoofer

From source

chmod +x setup.sh
sudo ./setup.sh

From a CI build artifact

Every run of the MacSpoofer CI workflow builds the package and uploads the resulting wheel as a GitHub Actions artifact named macspoofer-wheel. To install a pre-release build:

1. Open the relevant workflow run on the Actions tab.
2. Download the macspoofer-wheel artifact and unzip it.
3. Install the wheel with pip:

pip install ./macspoofer-*.whl

Usage

Find Your Interface Name

ifconfig -a
# or
ip link show

Interactive Mode (TUI)

sudo -E macspoofer -i <interface>
# or
sudo -E python3 main.py -i <interface>

Auto Mode (Non-Interactive)

sudo -E macspoofer -i <interface> --auto
# or
sudo -E python3 main.py -i <interface> --auto

Command Line Options

Option	Description
-i <interface>	Network interface name (e.g., wlan0, eth0) [Required]
--auto	Non-interactive mode: generate and apply a random unicast MAC
--ci	CI mode: for automated testing
--help	Show help message and usage examples
--version	Show version information

Programmatic Usage

You can also use macspoofer as a Python library:

Generate a Random MAC Address

from macspoofer.utils.random_utils import generate_safe_unicast_mac

mac = generate_safe_unicast_mac()
print(mac)  # e.g. "a6:3f:12:cb:90:01"

Search & Browse Vendors

from macspoofer.utils.vendors import VendorRegistry

# Total vendors in the database
print(VendorRegistry.vendor_count())

# Search by name (case-insensitive)
results = VendorRegistry.search("Raspberry")
print(results)

# Get OUI prefixes for a specific vendor
ouis = VendorRegistry.get_ouis_for_vendor("Apple")
print(ouis[:3])  # ['58:e6:ba', '8c:98:6b', ...]

Generate a Vendor-Specific MAC

from macspoofer.spoofer import generate_mac_for_vendor

mac = generate_mac_for_vendor("Samsung")
print(mac)  # e.g. "e4:7a:11:2f:c8:5d"

Spoof an Interface (requires root)

import asyncio
from macspoofer.modules.interface import NetworkInterface
from macspoofer.spoofer import spoof_mac_address
from macspoofer.utils.random_utils import generate_safe_unicast_mac

async def main():
    interface = NetworkInterface("wlan0")
    mac = generate_safe_unicast_mac()
    await spoof_mac_address(interface, mac, require_confirmation=False)

asyncio.run(main())

License

MIT License

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© 2022-2026 Daniel Kirshner. All rights reserved.