PartXplore is described as 'The most powerful, high-speed CAD file viewer and analyzer. Very easy to use and is designed for users who are not necessarily CAD experts to enable them to explore any type of 2D/3D CAD file'. There are more than 10 alternatives to PartXplore for a variety of platforms, including Windows, Linux, Online / Web-based, iPhone and iPad. The best alternative is STP Viewer, which is free. Other great apps like PartXplore are A360 VIEWER (Free), JT2Go (Free), eDrawings Viewer (Freemium) and Glovius (Paid).
A360 Viewer is a free online viewer for 2D and 3D designs including AutoCAD DWG, DXF, Revit RVT and Inventor IPT, as well as STEP, SolidWorks, CATIA and others. These file types can be viewed with the online A360 viewer, the free version of A360, and the paid version, A360 Team.
JT2Go is the no-charge viewing solution that includes basic 3D measurement, basic 3D sectioning, and product manufacturing information. JT is the common language of PLM and is the world’s most widely used 3D format.
3D viewers for CATIA V4/V5/V6, STEP, IGES, Creo, Pro/ENGINEER, NX, JT, SolidWorks, Solid Edge and Inventor files. Take accurate measurements, cut dynamic sections, compare differences between models, review changes. View and search attributes. View, search and filter PMI.
Component of IDA-STEP providing core viewing functionality for all kinds of STEP files (*.stp). This component alone makes a fully usable tool for viewing PDM, CAD and other data, available as STEP (internation standard ISO 10303) files.