Spline

Spline is a browser‑based 3D design application that lets users model, texture, animate, and add interactivity to objects directly in the web. The tool provides familiar modeling primitives, layer‑based material editing, and real‑time rendering, enabling the creation of production‑ready assets such as logos, icons, mockups, and animated characters.

Collaboration is built in, with multiple participants able to edit a scene simultaneously and see changes instantly. Users can remix community‑shared designs and export their work to various platforms, supporting interactive websites, product visualizations, brand marketing, gamified experiences, and industrial design workflows.

The platform targets designers and teams who need to build interactive 2D and 3D experiences without leaving the browser, offering a single environment for modeling, animation, material creation, and motion scripting. It runs on macOS and is offered as a free, stable service.