If you work with CAD (computer-aided design) files, you may often come across the need to view or share STP files. STP (Standard for the Exchange of Product model data) files are commonly used for 3D models and contain important data for product manufacturing and design. To help you view STP files without the need to download any software, we've compiled a list of the top 5 free STP file viewer online options. 1. A360 Viewer: A360 Viewer is a free online tool by Autodesk that allows you to view 3D models, including STP files, directly in your web browser. It supports various file formats and provides powerful visualization and collaboration features. 2. ShareCAD: ShareCAD is an online CAD viewer that supports viewing and converting various CAD file formats, including STP. It offers a user-friendly interface and allows you to view your STP files without any software installation. 3. 3D-Tool Free Viewer: 3D-Tool Free Viewer is a lightweight and easy-to-use online tool for viewing 3D models, including STP files. It provides measurement and markup tools, making it a great option for reviewing and sharing 3D designs. 4. Glovius: Glovius is a free online 3D viewer that supports various CAD file formats, including STP. It offers advanced analysis and visualization tools, making it suitable for viewing complex 3D models. 5. Online 3D Viewer: Online 3D Viewer is a simple yet effective online tool for viewing 3D models, including STP files, in your web browser. It supports various file formats and provides basic viewing and rotation capabilities. With these free STP file viewer online options, you can easily view and share your STP files without the need to download and install any software. Whether you're a designer, engineer, or student, these tools provide a convenient way to access and collaborate on 3D designs. Try out these online STP file viewers and streamline your CAD file viewing experience today!