If you have an obj file of a 3D model and want to view it online, there are several easy ways to do so. One option is to use an online 3D model viewer, such as Sketchfab or 3D Viewer Online. These platforms allow you to upload your obj file and view it directly in your web browser, without the need for any special software. Another option is to use a 3D modeling software that supports online viewing, such as Blender or Autodesk Fusion 360. These programs allow you to upload your obj file and share it with others, making it easy to collaborate on 3D projects. By following these simple tips, you can easily view obj files online and showcase your 3D models to the world!