For the average user, the hassle of chasing a "true" portable version outweighs the benefits. The official Autodesk Viewer (web) or the lightweight DWG FastView portable are superior solutions for 90% of mobile viewing needs.
While there is no portable version of DWG TrueView from , you can use official online alternatives or create a portable wrapper yourself for use on a USB drive. Official Alternatives (No Installation Needed) dwg trueview portable
DWG TrueView Portable is a free, downloadable software application developed by Autodesk, a leading provider of computer-aided design (CAD) software. The software allows users to view, measure, and markup DWG (AutoCAD) files without requiring a full installation of AutoCAD or any other CAD software. For the average user, the hassle of chasing
(.NET Framework, C++ Redistributables).