LinkLiar

A lightweight macOS status‑menu utility written in Swift that lets users change the MAC addresses of Wi‑Fi and Ethernet interfaces. It runs with administrator privileges, updates the address in the background, and integrates with the system menu bar for quick access. The app is open‑source under the MIT license and can be installed via Homebrew or manual download.

Targeted at users who want to prevent their Mac from exposing hardware MAC identifiers, it supports macOS Sierra (10.12) and newer. The tool automatically disconnects from a network before applying a new address, and it offers advanced options when the Option key is held, primarily for developers.

Distinctive aspects include a graphical interface for MAC spoofing, automatic handling of network disassociation on macOS 12.3 and later, and built‑in logging for troubleshooting. Limitations are documented, such as the inability to modify MACs on certain older MacBooks or when the Wi‑Fi interface is off.