Spline

Spline is a free 3D design software with real-time collaboration to create web interactive experiences in the browser. Easy 3d modeling, animation, textures, and more. It allows users to easily create and publish 3D web experiences, build and iterate fast with production-ready results. Spline is a place to design and collaborate in 3D, giving designers, marketers and developers a lightweight way to add immersive visuals to websites without coding or heavy file exports.