Running CAN and CAN FD on Mac is the mission of the MacCAN project. There are many companies offering multifarious CAN hardware and CAN software. Unfortunately, few of them provide a driver for the Mac.
UV Software provides macOS® user-space drivers for USB-to-CAN interfaces from various vendors.
TouCAN USB Interfaces from Rusoku
Rusoku Technologies is an innovative engineering team based in Lithuania, Europe. They offer CAN adapter at a reasonable price. Drivers and utilities for Windows® and Linux® are available as open-source. A macOS® user-space driver for TouCAN USB Interfaces from Rusoku is provided by UV Software.
USB CAN Interfaces from Kvaser
The Swedish company Kvaser AB supplies advanced CAN solutions to engineers designing and deploying systems for manifold areas of applications. They offer a wide range of CAN hardware and CAN software. A macOS® user-space driver for USB CAN Interfaces from Kvaser is provided by UV Software.
PCAN-USB Interfaces from PEAK-System
PEAK-System is a leading provider of hardware, software, and services for the mobile and industrial communication sector with emphasis on the field buses CAN and LIN. A macOS® user-space driver for PCAN-USB Interfaces from PEAK-System is provided by UV Software.
CAN Interface API by UV Software
CAN API V3 is a wrapper specification by UV Software to have a uniform CAN Interface API for various CAN interfaces from different vendors running under multiple operating systems. The macOS® driver libraries come with a CAN API V3 compatible API in the SDK, or alternatively wrapper libraries are available as separate SDKs for macOS® as well as for Windows®.