The free Autodesk TrueView is built on the same core code as AutoCAD and as such has 100% DWG viewing and plotting like AutoCAD. It also has some really nice features besides just viewing a DWG file and that is measuring, plotting with plot styles, and also a batch conversion ability to batch convert drawings to the latest format and even replace plotstyles in that process. I wouldn’t highlight it as a viewer as there is the free and premium AutoCAD Web App for that without a 6Gb install, but TrueView is more or less a powerful desktop batch processing utility.

You can Publish/Plot in batch mode to printers/plotters, PDF, or DWFx and include plot stamps.

Batch convert your drawing

When batch converting you can also purge, bind external references, place all files in a single folder, and more.
Have 500 drawings you would like to check and fix, bind all Xrefs, and purge and then place in one directory and then zip archive it automagically then look no further.

System requirements for DWG TrueView 2020

Operating System

• Microsoft® Windows® 10 Anniversary Update (version 1803 or higher)
• Microsoft Windows 8.1 with Update KB2919355
• Microsoft® Windows® 7 SP1

Browser
Minimum: Internet Explorer^® 11 or later
Recommended: Google^™ Chrome^™

Processor
Minimum: 2.5–2.9 GHz processor
Recommended: 3.0+ GHz processor

Memory
Minimum: 8 GB RAM
Recommended: 16 GB RAM

Display Resolution
Minimum:

• Conventional Displays – 1360×768 with True Color, and 125% Desktop Scaling (120 DPI) or less recommended
• High Resolution & 4K Displays – Resolutions up to 3840×2160 with True Color (Windows 10 and capable display card)

Recommended:

• Conventional Displays – 1920×1080 with True Color, and 125% Desktop Scaling (120 DPI) or less recommended
• High Resolution & 4K Displays – 3840×2160 with True Color (Windows 10 and capable display card)

Display Card
Minimum: 1 GB GPU with 29 GB/S Bandwidth and DirectX 11 compliant
Recommended: 4 GB GPU with 106 GB/S Bandwidth and DirectX 11 compliant

Disk Space
Installation 6.0 GB

So if you need a 100% DWG desktop tool for power batch operations with so much more for free, get downloading and installing today. https://www.autodesk.com/products/dwg/viewers

If you just need a really good viewer with even more and no need to install anything and runs on most browsers, then I would encourage you to look at the AutoCAD Web App free version. For a small subscription you can add editing with the same DWG format and crazy 16 decimal precision as your desktop AutoCAD.

”Edit, create, and view CAD drawings in the web browser on any computer. Just sign in and get to work—no software installation required. Use familiar AutoCAD® drafting tools in a simplified interface. Access and update DWG™ files online from anywhere. Get the app included with an AutoCAD or AutoCAD LT subscription.” https://www.autodesk.com/products/autocad-web-app/overview I will post a deep dive into this powerful web based AutoCAD Web App in the next week.

Cheers,
Shaan