Are you working with CAD or 3D modeling projects and need a free STP file viewer to open and view STEP files? Look no further! We've compiled a list of the best free STP file viewer tools that will help you seamlessly access and navigate your 3D models. Whether you're a professional engineer, designer, or hobbyist, these tools are perfect for anyone working with STP files. Let's dive into the top options:

1. FreeCAD: FreeCAD is an open-source parametric 3D CAD modeler that comes with a built-in STP file viewer. It supports a wide range of file formats and offers powerful features for 3D modeling and design.

2. eDrawings Viewer: eDrawings Viewer is a free software from SOLIDWORKS that allows you to view and share 3D models and 2D drawings in STP and other file formats. It provides comprehensive viewing and measuring tools for easy collaboration.

3. A360 Viewer: A360 Viewer is a web-based tool by Autodesk that enables you to upload and view 3D models, including STP files, directly in your browser. It's a simple and intuitive solution for quick access to your designs.

4. 3D-Tool Free Viewer: 3D-Tool Free Viewer is a lightweight yet powerful software for opening and analyzing 3D CAD models, including STP files. It offers advanced visualization and measurement capabilities for detailed inspection.

5. Babel3D: Babel3D is an online platform that allows you to upload and view 3D models in various file formats, including STP. It supports real-time 3D rendering and provides tools for sharing and embedding your models.

No matter what your specific needs are, these free STP file viewer tools have got you covered. They offer a range of features to help you visualize, analyze, and collaborate on your 3D designs without spending a dime. Give them a try and take your CAD and 3D modeling projects to the next level!