Best Web-Based CAD Viewers of 2026

JigSpace is the gateway to spatial computing. Our spatial presentations, which we call Jigs, combine 3D content with audio, video and text to create an interactive, step by step experience that enhances the communication of complex products, ideas or processes. • Immerse yourself: Discover your products in greater detail than ever before. Engage with content that has been meticulously crafted to ensure clarity and immersive communication. • Unbelievable realism: Apple Vision Pro's 4K textures, high-fidelity CAD files, and support for 4K textures create presentations that feel like they are real. • Intuitive Interaction: Manipulate Jigs intuitively using your hands. Pull apart components, annotate and explore in a hands-on, natural manner that enhances interaction and understanding. • Easy collaboration: SharePlay allows you to bring all the right people in the same room and communicate the important information for your business.

Open CascadeCAD Assistant is an offline 3D CAD viewer/converter with an intuitive interface. It is free for personal and commercial use. The solution was originally developed to showcase the Open CASCADE Technology on mobile platforms. It has been widely used by thousands of users on desktops and mobiles around the world as a fast and useful 3D viewer. CAD Assistant puts the power of open technologies in the hands of engineers who work with 3D data. CAD Assistant is based upon open source libraries (Open CASCADE Technology Qt, FreeType and FreeImage, etc.). Open formats are available for CAD and mesh data (STEP and IFC, IGES and BREP), glTF and JT, PLY STL, OBJ and 3DM. It supports a variety of file formats, including DXF and SAT (ACIS), XT(Parasolid). Additional functionality in CAD Assistant includes the ability to view mesh models and associated data. You can read files in PLY format to view mesh.