What is Spline?

Spline is a web-based 3D design platform that supports real‑time collaboration and instant rendering. Users can build interactive 3D experiences, websites, apps, and marketing assets directly in the browser with familiar tools such as primitives, modeling brushes, and a layer‑based material editor.

The platform offers an event system for adding animation, physics, particles, and interactive states, and it supports exporting designs to web, iOS, Android, and other frameworks through built‑in connectors to Webflow, Framer, Wix, and more. Spline integrates external data via variables, webhooks, APIs, and AI, enabling dynamic content updates in real time.

Designers and developers can remix community‑shared scenes, access a library of assets, and collaborate with comments or shared links, streamlining the workflow from concept to deployment. The tool is designed for teams in design, product, marketing, and engineering, allowing rapid prototyping of production‑ready 2D and 3D assets without requiring specialized coding expertise.

Spline pricing Free

Basic $0

Super $9/mo

Super team $12 per team editor/ mo

Verify on the official pricing page.

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Spline user reviews

Based on 23 reviews, 69.6% of users recommend Spline, rated highly for value for money.

recommend

don't

23 reviews

Liked for

Worth the price 12 of 16

Easy to use 10 of 16

Quality results 9 of 16

All key features 9 of 16

Good integrations 6 of 16

Disliked for

Missing features 7 of 7

Inconsistent results 4 of 7

Hard to use 4 of 7

Not worth the price 3 of 7

Lacks integrations 3 of 7

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Recommend this tool?

Spline's key features

Real-time collaborative 3D design
Web-based interactive rendering
Layer-based material editor
Event-driven interactivity and animation
Physics and particle simulation
Variables and API integration
Multi-platform export Web iOS Android

Spline use cases

Create an interactive 3D product showcase for an e‑commerce site that updates in real time as inventory changes via API, all built without code
Collaboratively design a virtual event space with a team, instantly rendering changes so stakeholders can review the layout in the browser, then export the scene to iOS and Android for a native attendee app
Prototype an AR furniture app by building a 3‑D model in Spline, integrating AI‑generated textures, and publishing a web‑based preview that can be embedded on a retailer’s landing page