iCn3D ("I see in 3D") is a WebGL-based viewer for interactive viewing of three-dimensional macromolecular structures and chemicals on the web, without the need to install a separate application.
This web-tool is similar to other online protein modeling tools that don't require the user to instal any software to use the tool. Unlike other modeling tools, NCBI iCn3D has more robust features and more integration into other protein modeling tools. Additionally, visualizations can be exported as files that can be used in other applications or even 3D printers.