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.

In mathematics, a spline is a function defined piecewise by polynomials. In interpolating problems, spline interpolation is often preferred to polynomial interpolation because it yields similar results, even when …

Illustrated definition of Spline: A function made up of polynomials that each have a specific interval. In other words a piecewise polynomial...

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Download the Spline design app on desktop for macOS or Windows. Create and collaborate in real-time in 3D for free. Get started now!

Discover what's possible with Spline Spline can transform your ideas into interactive 3D experiences across various industries and applications. Get started — it’s free

Learn the ins and outs of 3D design with Spline Learn Center. Watch instructional walk-throughs, tutorials, and examples of designing 3D interactive experiences in Spline.

Get inspired by 3D designs made with Spline Duplicate scenes and learn how to achieve the same look, interactions or compositions.

This documentation describes the core features of Spline. We will update the content as new features get implemented. Submit a topic/idea/report here.

Create and collaborate on 3D designs for free. Real-time collaboration, animations, textures and more. Upgrade your Spline subscription for extra features and collaboration with your team.