Spline, founded in 2020, focuses specifically on creating and animating 3D scenes and objects in the browser, closer to a lightweight, web-native alternative to desktop 3D software than a website builder itself, producing assets and interactive scenes that get embedded into a website, app, or product built somewhere else.
That scoped focus distinguishes it from tools like Dora, also covered in this directory, which build entire 3D-capable websites: Spline is where the 3D content itself gets created and animated, while a site builder handles the surrounding page structure, copy, and layout the 3D elements sit inside.
A free tier covers personal projects, and paid plans start around $12 a month for team features and more export options. For a designer specifically who needs to create and animate 3D scenes or interactive objects to embed into a website or product being built elsewhere, Spline's focused 3D creation tools address that specific step rather than competing as a full site builder.
