Spline

Spline brings 3D design to the browser and makes it accessible to designers who have never touched a traditional 3D modeling tool. You can create interactive 3D scenes, animate them, add real-time user interactions, and embed the result on any website with a single code snippet. No JavaScript, no WebGL knowledge, and no plugins required.

What Spline Does

Spline is a browser-based 3D design platform built for creating interactive web experiences. You work in a visual editor that combines 3D modeling, material editing, lighting, animation, and physics simulation in one workspace. The standout feature is its interaction system: you can wire up mouse hovers, scroll triggers, click events, cursor tracking, and physics-based collisions directly in the editor. Spline AI adds text-to-3D generation, letting you create objects from text prompts or transform 2D images into editable 3D models. When your scene is ready, export it as an embeddable web component, a React component, or a static render for use in any project.

Key Strengths

No-code interactions. Build hover effects, scroll-driven animations, click responses, and physics collisions entirely in the visual editor. The interaction system handles what would normally require custom JavaScript and WebGL.
AI 3D generation. Generate 3D objects from text descriptions, create materials and textures with AI, and convert 2D images into editable 3D models. You can remix and iterate on generated results to build a personal 3D library.
Real-time collaboration. Multiple team members can work in the same 3D scene simultaneously, similar to how Figma handles 2D design collaboration.
Web-native exports. Embed interactive 3D scenes on any website with a code snippet, a lightweight web viewer, or a React component. Scenes run directly in the browser without plugins.
Approachable learning curve. The interface borrows patterns from 2D design tools, making it far more accessible than Blender, Cinema 4D, or other traditional 3D software.

Limitations to Know

Not for production 3D modeling. Spline is optimized for web-ready 3D experiences, not high-polygon modeling, CAD work, or film-quality rendering. Complex geometry needs are better served by dedicated 3D tools.
Performance considerations. Heavy 3D scenes with many objects, high-resolution textures, and complex interactions can impact page load times and mobile performance. Optimization is your responsibility.
Limited export formats. Spline focuses on web exports. If you need 3D files for game engines, 3D printing, or other platforms, export options are more limited than full 3D suites.

Pricing Overview

Spline offers a free tier and three paid plans with annual billing discounts of up to 20%.

Free: $0/month. Unlimited personal files, web exports with Spline branding.
Starter: $12/month. Up to 5 personal file editors, web exports without branding, basic asset library access.
Professional: $20/month. Unlimited personal file editors, Apple and Android exports, file version history, and priority support.
Team: $36/seat/month. Unlimited team files and projects, shared workspaces, and optional Spline AI add-on for advanced generation features.

Best Use Cases

Interactive landing pages. Add 3D hero sections, product showcases, or animated backgrounds that respond to user input. Companies like Scale AI and Resend use Spline for this purpose.
Product visualization. Create interactive 3D product models that visitors can rotate, zoom, and explore directly on your website.
Portfolio and creative websites. Designers can showcase work with immersive 3D environments that set their sites apart from template-based portfolios.
Prototyping spatial interfaces. Explore 3D UI concepts and spatial interactions for web apps, AR previews, or experimental interfaces.

How It Compares

Spline operates in a different category than most tools in this collection. While Canva handles 2D visual design and Relume manages website wireframing, Spline focuses exclusively on interactive 3D for the web. It is the most accessible entry point into 3D web design available today. For teams building Webflow sites with Relume, Spline scenes can be embedded directly into those projects for added depth. If you need traditional image editing rather than 3D, Photopea covers that space. And for UI design with developer handoff, Penpot provides the CSS-native workflow Spline does not attempt.

Common Questions

Do I need 3D experience to use Spline? No. Spline’s interface is designed for 2D designers transitioning to 3D. The controls mirror familiar design tool patterns, and the AI generation features let you create objects from text prompts without manual modeling. Most users are productive within a few hours.

How do Spline embeds affect website performance? Lightweight scenes load quickly and run smoothly on modern browsers. Complex scenes with many objects or high-resolution textures can slow down page loads, especially on mobile. Keep scene complexity reasonable and test on target devices before publishing.

Can I use Spline with React or Next.js? Yes. Spline provides a React component export option that integrates directly into React-based projects. You can also use the standard embed code or the Spline viewer web component in any framework.

Is the AI generation good enough for production use? The AI-generated objects work well as starting points for stylized, web-ready 3D content. They are not photorealistic or high-polygon. Most teams use AI generation to rapidly prototype ideas, then refine the results manually in Spline’s editor before publishing.