Spline

Spline is a browser-based 3D design tool for creating interactive scenes for the web. You can model shapes, add materials and lighting, animate with states and events, and publish the scene to a website or embed it in an app. No code is needed for the basics, and the editor is approachable for designers who have never done 3D before.

Key Features

• Browser-based 3D modeling and animation
• Interactive states, events, and physics
• Publish to web or embed in apps
• Materials, lighting, and camera tools
• AI scene generation from prompts
• APIs and code export on higher plans

Pricing

Prices as listed in 2026 research. Always check the official site for the latest price — plans change. Free plan: Yes — it has a free plan.

How it works

The tool is popular for product viewers, website heroes, and small interactive experiences that react to the cursor or to user input. It includes physics, variables, and APIs for more advanced work, and a new AI canvas can generate scenes from text prompts.

Spline has a free plan with limited files and watermarked web exports, and Hobby at $12 per seat per month on annual billing ($15 monthly) removes the watermark and unlocks unlimited files. It is the easiest way for a web designer to add real 3D to a site.

Pros and Cons

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