Are you working with STP files and need a reliable online viewer to help you visualize and interact with your 3D models? Look no further! Here are 5 of the best STP file viewer online tools that you can use for free:

1. FreeCAD: FreeCAD is a powerful open-source parametric 3D CAD modeler that supports the STP file format. With its intuitive interface and extensive features, FreeCAD is a great choice for viewing and editing your STP files online.

2. OnlineViewer.co: OnlineViewer.co is a simple and straightforward online STP file viewer that allows you to upload and view your 3D models in the STP format. It offers basic tools for rotating, zooming, and inspecting your models, making it a convenient option for quick visualization tasks.

3. Autodesk Viewer: Autodesk Viewer is a web-based tool that supports various CAD file formats, including STP. It provides a range of viewing and markup features, allowing you to collaborate with team members and stakeholders on your 3D designs.

4. Glovius: Glovius is a feature-rich online CAD viewer that supports a wide range of file formats, including STP. It offers advanced capabilities such as measuring, sectioning, and analyzing 3D models, making it suitable for detailed inspection and analysis tasks.

5. 3D-Tool Viewer Online: 3D-Tool Viewer Online is a lightweight and easy-to-use STP file viewer that enables you to upload and view your 3D models directly in your web browser. It offers simple navigation controls and basic visualization tools for examining your STP files.

Whether you're a professional engineer, designer, or hobbyist, having access to a reliable STP file viewer online can greatly facilitate your workflow and project collaboration. These top 5 tools provide a range of features and capabilities to help you visualize and interact with your 3D models with ease.

So, next time you need to view an STP file online, give one of these tools a try and see how they can streamline your 3D modeling process!