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Spline

Free tier

The all-in-one platform for 3D and interactive design in the browser

Free tier available·All audiences·API available
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Key strengths

Real-time collaborative 3D design in the browserMulti-platform export (Web, iOS, Android, Webflow, Framer, Wix)No-code interactivity with events, states, physics, and animationsAI-powered 3D generation via OmmaProduction-ready embeds with a lightweight web component
Free tier + paid plans
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Spline is a web-based, real-time collaborative 3D design platform that outputs production-ready interactive experiences deployable across Web, iOS (Swift), and Android (Kotlin). It exposes a @splinetool/viewer web component (available via unpkg/npm) that wraps compiled .splinecode scene files, enabling zero-rebuild 3D embedding in HTML, React, Next.js, Webflow, Framer, and Wix Studio. The platform includes a Spline API for programmatic scene access, supports webhooks and variables for live data binding, and features a physics engine, particle systems, and a full event/state machine — all configurable through a visual editor. The new Omma AI layer allows natural-language generation of interactive 3D scenes and web experiences.