Spline
A place to design and collaborate in 3D. Designing in 3D has never been easier. Tools to express your creativity, and there is more!. You can integrate your 3D objects into websites. Create 3D scenes, edit materials, and model 3D objects. Control the outcome of your design work. 3D opens a new door for creativity. A solid set of features that will help you create your best designs.
Vectary
VECTARY is an online 3D modeling tool desigened to help create, share and customize 3D designs.
Since VECTARY is a free tool, there isn't any cost for the software. If you are introducing a group of students to VECTARY, you can set up a virtual classroom and gather everything needed to introduce students to 3D modeling.
Adobe Dimension
Adobe Dimension is a 3D rendering and design software developed and published by Adobe Systems for macOS and Windows operating systems. It was founded as Project Felix on March 28, 2017, and became Dimension on October 18, 2017. Unlike other modeling programs such as SketchUp, models are not created in Dimension.