Are you looking for a free software to open STP files? You're in luck! STP files, also known as Standard for the Exchange of Product model data or STEP files, are a universal file format for 3D design data exchange. Whether you're working with CAD/CAM, CAE or other types of engineering software, you may encounter STP files and need a way to view or modify them. Fortunately, there are several free software options available to help you open and access STP files without having to spend any money. One popular choice is FreeCAD, an open-source parametric 3D CAD modeler that supports the import and export of STP files. FreeCAD is a powerful and versatile tool that is suitable for a wide range of 3D design and modeling tasks, making it an excellent option for opening STP files. Another free and widely-used software for opening STP files is eDrawings Viewer. This software allows you to view, print, and review all types of eDrawings files, including STP files, without the need for the original CAD software. eDrawings Viewer is a user-friendly and intuitive tool that provides a realistic and immersive viewing experience, making it a great option for those who simply need to view and analyze STP files. Additionally, if you're looking for a web-based solution to open STP files, you can consider using the Online 3D Model Viewer. This free online tool allows you to upload and view 3D models in various formats, including STP, directly in your web browser. It's a convenient option for quick and easy access to STP files without the need to install any software on your computer. In conclusion, there are several free software options available for opening STP files, ranging from standalone desktop applications to web-based tools. With these options, you can easily access and view STP files without having to invest in expensive software. Whether you're a professional engineer, a student, or simply someone who needs to view 3D design files, these free software solutions provide a cost-effective and efficient way to work with STP files. Try out FreeCAD, eDrawings Viewer, or the Online 3D Model Viewer today and discover the convenience of opening STP files without spending a dime.