STP Viewer - Free STP Viewer - free software that lets you view 3D STEP files (.stp, .step file format).
RealityMAX - RealityMAX is the most powerful free 3D design collaboration platform, 100% online. Cooperate remotely with your colleagues on 3D projects and easily share your work with clients. Create Web3D and AR experiences in a snap, without a line of code.
A360 VIEWER - Free online CAD Viewer
Cadbull - Cadbull is a website that comes with an advanced collection of CAD blocks and DWG design, facilitating architects and designers to get done with their projects efficiently.
DXF View - A lightning-fast drawing viewer enables you to view DXF and DWG™ files on Mac
DWGFREE - DWGFREE is an online platform that comes with a comprehensive collection of CAD blocks that can be downloaded without the need for registration.