If you're a designer, architect, or engineer working with CAD files, you know how important it is to have a reliable DWG viewer for macOS. While AutoCAD is the go-to software for creating and editing DWG files, it's not always convenient to have the full program installed on your Mac. That's where standalone DWG viewers come in handy. In this article, we'll explore some of the best options for viewing DWG files on macOS.

1. AutoCAD web app: AutoCAD offers a web-based version of its software that allows you to view, edit, and share your DWG files directly in your browser. This is a great option for macOS users who need occasional access to CAD files without installing software on their device.

2. DWG FastView: DWG FastView is a free DWG viewer that's available for both macOS and Windows. It's a lightweight and fast program that allows you to open and view DWG files with ease. In addition to viewing capabilities, it also offers basic editing tools for making annotations and measurements.

3. LibreCAD: If you're looking for open-source software to view and edit CAD files on macOS, LibreCAD is a great option. It supports the DWG format and offers a range of features for creating and modifying 2D designs. While it may not have all the advanced tools of AutoCAD, it's a solid option for basic design work.

4. A360 Viewer: A360 Viewer is another web-based tool that allows you to view DWG files in your browser. It supports a wide range of file formats, including DWG, and offers basic markup and collaboration features. This is a good option for macOS users who need to quickly view and share CAD files without installing additional software.

5. DraftSight: Developed by Dassault Systèmes, DraftSight is a powerful 2D CAD program that offers a free version for personal use. It's compatible with macOS and provides essential tools for viewing and editing DWG files. While the free version has some limitations compared to the paid version, it's still a solid choice for Mac users.

In conclusion, there are several options available for macOS users in need of a DWG viewer. Whether you're looking for a lightweight standalone program or a web-based solution, the options listed above provide reliable ways to view and edit CAD files on your Mac. Depending on your specific needs and budget, you can choose the best DWG viewer for macOS that suits your requirements.