Are you looking for a way to view Revit files without having to purchase the expensive software? Here's a list of the top 5 free Revit file viewers that will allow you to open, view, and collaborate on Revit files without needing the original software.

1. Autodesk Viewer: Autodesk offers a free online viewer that supports over 50 file formats, including Revit files. You can easily upload your Revit models and share them with others for viewing and commenting.

2. BIM Vision: BIM Vision is a free IFC model viewer that also supports Revit files. It allows you to view 3D models, add comments, and take measurements, making it a great tool for collaboration.

3. Tekla BIMsight: While primarily designed for Tekla structures, Tekla BIMsight also supports Revit files. It enables you to view 3D models, check for clashes, and collaborate with other project stakeholders.

4. A360 Viewer: A360 Viewer is another free online tool by Autodesk that supports Revit files. It allows you to view, share, and review 2D and 3D designs on any device, making it easy to collaborate with team members and clients.

5. DDS-CAD Viewer: DDS-CAD Viewer is a free tool for viewing BIM models, including those created in Revit. It offers various viewing options and measurement tools, making it a useful resource for construction professionals.

These free Revit file viewers are essential for anyone working with Revit files who needs to collaborate with others who may not have access to the original software. Whether you're an architect, engineer, contractor, or client, these tools make it easy to view and communicate about Revit models without the need for expensive software.

In conclusion, these free Revit file viewers offer valuable solutions for anyone who needs to view and collaborate on Revit files without the original software. By using these tools, you can streamline your workflow, improve collaboration, and ensure that everyone involved in the project has access to the information they need.