Are you in need of a free online CAD viewer to visualize your 3D models? Whether you're a professional designer, engineer, or hobbyist, having access to a reliable CAD viewer that lets you easily view and collaborate on CAD files is essential. Fortunately, there are several free online CAD viewers available that provide powerful features and intuitive interfaces. Here are 5 of the best free online CAD viewers for 3D models:

1. AutoDesk A360: AutoDesk A360 is a popular free CAD viewer that allows you to view, share, and collaborate on 2D and 3D CAD models from any device. With support for over 50 file formats, including DWG, DWF, and STL, A360 makes it easy to access and review CAD files on the go.

2. FreeCAD: FreeCAD is a free, open-source parametric 3D CAD modeler that also serves as a versatile CAD viewer. With its modular architecture and Python scripting support, FreeCAD offers a wide range of features for viewing, analyzing, and modifying CAD files.

3. Glovius: Glovius is a free online CAD viewer that supports popular 3D CAD file formats such as CATIA, NX, SOLIDWORKS, and Inventor. With its intuitive user interface and powerful visualization tools, Glovius allows you to easily view and analyze complex 3D models.

4. 3D-Tool: 3D-Tool is a free CAD viewer that offers comprehensive 3D model visualization and analysis capabilities. With support for a wide range of file formats and the ability to create exploded views, animations, and measurements, 3D-Tool is a versatile tool for CAD visualization.

5. Clara.io: Clara.io is a free, cloud-based 3D modeling and rendering platform that also serves as a powerful CAD viewer. With support for real-time collaboration, version control, and advanced rendering capabilities, Clara.io is a great option for visualizing and sharing CAD files online.

Whether you're a professional designer, engineer, or hobbyist, having access to a reliable and user-friendly CAD viewer is crucial for efficiently working with 3D models. With these 5 best free online CAD viewers, you can easily view, analyze, and collaborate on CAD files with ease. Try out these free CAD viewers and take your 3D model visualization to the next level!