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. So if you need a 100% DWG desktop tool for power batch operations with so much more for free, get downloading and installing today. Recommended: 4 GB GPU with 106 GB/S Bandwidth and DirectX 11 compliant Minimum: 1 GB GPU with 29 GB/S Bandwidth and DirectX 11 compliant High Resolution & 4K Displays - 3840x2160 with True Color (Windows 10 and capable display card).Conventional Displays - 1920x1080 with True Color, and 125% Desktop Scaling (120 DPI) or less recommended.High Resolution & 4K Displays - Resolutions up to 3840x2160 with True Color (Windows 10 and capable display card).Conventional Displays - 1360x768 with True Color, and 125% Desktop Scaling (120 DPI) or less recommended.Microsoft Windows 8.1 with Update KB2919355.Microsoft® Windows® 10 Anniversary Update (version 1803 or higher).System requirements for DWG TrueView 2020 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.

When batch converting you can also purge, bind external references, place all files in a single folder, and more. You can Publish/Plot in batch mode to printers/plotters, PDF, or DWFx and include plot stamps. 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.

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. The free Autodesk TrueView is built on the same core code as AutoCAD and as such has 100% DWG viewing and plotting like AutoCAD.

Autodesk free viewer