Spline
Freemium3D design tool for the web
About Spline
Spline is a browser-based 3D design tool aimed at UI and product designers who want to add 3D elements to web interfaces without learning Blender or Three.js. You build 3D scenes in the browser, export them as embeddable code snippets, and drop them into web projects — the 3D content renders in real-time using WebGL. The tool is intuitive enough that designers comfortable with Figma can produce usable 3D scenes in a few hours. Common use cases include 3D hero sections, interactive product showcases, and animated 3D icons. Spline supports boolean operations, physics simulations, and animation timelines. Export options include React components, iframes, and static images. The free plan allows unlimited public projects. Paid plans start at $9/user/month (Pro) for private projects and team collaboration. The performance of exported scenes is a common Reddit complaint — complex scenes with many objects tank page performance on lower-end devices, requiring significant optimization work. Spline is not a replacement for professional 3D software like Cinema 4D or Blender — it trades depth for accessibility, which is the right call for its target audience.
Key Features
Pricing Plans
Free
- Unlimited projects
- 3D modeling tools
- Basic export
- Community assets
Pro
- Private projects
- Remove watermark
- Advanced export
- Version history
Team
- Everything in Pro
- Team management
- Shared libraries
- Priority support
Pros
- Makes 3D design accessible to non-3D designers
- Runs entirely in the browser
- Real-time collaboration like Figma but for 3D
- Easy web export with embed codes
- Interactive events without coding
- Generous free plan
Cons
- 3D modeling is simpler than professional tools
- Performance can lag with complex scenes
- Limited material and lighting options
- Export formats are limited
- Not suitable for production 3D assets
- Smaller asset library than alternatives
Best For
- Web designers wanting to add 3D elements without learning specialized 3D software
- Marketing teams building interactive 3D hero sections and product showcases
- Frontend developers who want 3D content they can embed as React components
- Design teams prototyping 3D UI concepts for stakeholder review
Not Ideal For
- 3D artists needing professional modeling, rendering, or VFX capabilities
- Teams building performance-critical 3D experiences on mobile — exported scenes need optimization
- Game development or AR/VR content production
Potential Deal Breakers
- Exported scene performance can be poor on mobile and low-end devices without significant optimization
- Not a professional 3D tool — complex modeling work still requires Blender or Cinema 4D
- Private projects require paid plan — the free tier is limited to public work
Data & Privacy
3D design tool. Public projects visible to everyone. Private projects on paid plans. Limited privacy policy details for a growing startup. Projects exportable.
Who Is This For?
Hands-on tested May 2026
Signup Experience
Email or Google signup with a free tier available -- no credit card required. The browser-based editor loads immediately with no install needed. The first 3D scene with basic shapes, materials, and animation is buildable within 30 minutes for designers familiar with 2D tools. Export as iframe embed or React component is a few clicks.
For Home Users
Free tier covers unlimited public projects -- enough for personal portfolio pieces, learning 3D design, or experimenting with web animations at no cost. Pro at $9/mo adds private projects and removes the Spline watermark from exports. Hobbyists and students learning 3D for web can get substantial value from the free tier.
For Business Users
Pro at $9/user/mo covers private projects and clean exports. Team at $18/user/mo adds shared libraries and team management. The exported WebGL scenes integrate into React or vanilla JS projects without writing 3D code -- a significant productivity gain for frontend teams adding 3D to marketing sites. Performance optimization on export is the main operational overhead: complex scenes need manual tuning to perform acceptably on mobile. Marketing and product teams using Spline for hero sections and product showcases consistently report faster delivery than commissioning custom Three.js development.
Our Verdict
Spline hits a real gap in the market: 3D design that product and web designers can actually use without a six-month learning curve. The exported WebGL scenes are genuinely impressive for marketing sites and landing pages. Performance optimization is the ongoing headache — what looks great in Spline's editor can hammer mobile device performance, so budget time for optimization before shipping.