Are you struggling to find free software to open STP files? Don't worry, I've got you covered with the top three tools you need to easily access your CAD and 3D modeling files.

1. FreeCAD: This popular open-source parametric 3D CAD modeler is perfect for opening, editing, and converting STP files. With its intuitive interface and powerful features, FreeCAD is a go-to choice for professionals and hobbyists alike.

2. eDrawings Viewer: Developed by SolidWorks, eDrawings Viewer is a free software tool that allows you to open, view, and share STP files with ease. It offers cross-platform compatibility and a user-friendly interface, making it ideal for collaborating on 3D designs.

3. 3D-Tool Free Viewer: This lightweight and user-friendly tool is perfect for opening and visualizing STP files. With its advanced rendering capabilities and support for various 3D file formats, 3D-Tool Free Viewer is a must-have for anyone working with CAD files.

With these free software tools at your disposal, you can say goodbye to struggling to open STP files. Whether you're a professional engineer, a student learning 3D modeling, or simply curious about exploring CAD files, these tools make it easy to access and work with STP files. Try them out and streamline your CAD file viewing experience today!