CADViewer by Orua vs Glovius

CADViewer by Orua is a free, open-source browser viewer for large engineering drawings and read-only previews. It opens DWG, DXF, STL, STEP/STP, IGES/IGS, and BREP/BRP files through one entry point and toolbar. DWG and DXF files are parsed in a Web Worker with LibreDWG WebAssembly and rendered progressively using Canvas 2D and Path2D. Three-dimensional formats use OpenCascade WebAssembly and WebGL, with selectable metal surface finishes. Controls include pan, wheel zoom, fit-to-view, zoom window, drawing-list visibility, and light or dark backgrounds. Fonts can load on demand, and deployment configuration supports Simplified Chinese and English. The viewer runs on a static web server without an application server or database, with offline or private-network options. Locally selected files stay in browser processing without an account or upload API. It is read-only and lacks editing, property panels, selection workflows, and plugins.

Glovius is a CAD viewer for opening, measuring, analyzing, comparing and exporting part, assembly and drawing files. It supports CATIA V5/V6, NX, Creo, SolidWorks, Inventor, Solid Edge, STEP, DWG, DXF, IGES and JT. Analysis tools include thickness, collision and draft analysis, plus projected-area and section-area tools. Glovius Cloud lets users view models in a browser without installation, share files by link and embed models in websites; it can also synchronize with Dropbox. Free mobile apps are available for iPhone, iPad and Android phones and tablets. Export options include STEP, IGES, Parasolid, 3MF, JT, PDF, HTML, STL, images and PowerPoint. The Windows viewer runs on Windows 10 or 11 and requires at least 4GB RAM. A free plan and 15-day trial are listed. Paid options include packs at $15, paid once, $45, paid once and $91, paid once, and annual plans at 299.00 USD, 399.00 USD and $549 a year.