Are you looking for a free STP file viewer to open and view your 3D CAD models? Here are some top tools to help you easily visualize your STP files without spending a penny.

1. FreeCAD:

FreeCAD is a powerful open-source parametric 3D CAD modeler. It supports STP files and offers a variety of tools for modeling, simulation, and rendering. With its user-friendly interface, FreeCAD is a great option for both beginners and experienced users.

2. eDrawings Viewer:

eDrawings Viewer is a free software from SOLIDWORKS that allows you to view and share 2D and 3D designs in different file formats, including STP. It also provides tools for measuring, markup, and cross-sectioning to analyze your models effectively.

3. 3D-Tool Free Viewer:

3D-Tool Free Viewer is a feature-rich tool for viewing and analyzing 3D models, including STP files. It supports various CAD formats and offers interactive manipulation options to examine the geometry, assembly structure, and dimensions of your models.

4. A360 Viewer:

A360 Viewer is an online tool by Autodesk that enables you to view 2D and 3D designs from any device without installing any software. It supports STP files and allows you to collaborate and share your models with others easily.

5. OnShape:

OnShape is a cloud-based CAD platform that offers a free plan for hobbyists, students, and makers. It allows you to view and edit STP files directly in your web browser, making it a convenient option for accessing your designs from anywhere.

6. DWG FastView:

DWG FastView is a lightweight and fast CAD viewer that supports various file formats, including STP. It provides quick loading and smooth navigation to help you examine your models efficiently.

7. Autodesk Viewer:

Autodesk Viewer is a web-based tool that enables you to upload and view 2D and 3D designs, including STP files, directly in your browser. It offers collaboration features and supports multiple file formats for seamless integration with your design workflow.

These free STP file viewer tools offer a range of features to meet your visualization and analysis needs. Whether you are a designer, engineer, or hobbyist, you can take advantage of these tools to open and explore your 3D CAD models without any cost. Try out these options to find the best fit for your requirements and enjoy seamless viewing of your STP files.