Spline UI design & app screens

Spline is a browser-based 3D design tool that lets product and web designers model, animate, and ship interactive 3D scenes without a traditional CAD or game-engine workflow. It targets designers who want 3D in real products rather than VFX specialists.

The canvas-centric interface pairs a live 3D viewport with floating panels for objects, materials, and states, plus an events system for adding interactivity. Strong real-time editing, collaborative editing, and code-export flows make it a frequent reference for spatial UI, gizmo design, and property-panel layout.