SVG vs Three.js

Compare SVG's 2D vector model against Three.js's 3D WebGL rendering to choose the right tool for your graphics need.

2D Precision vs 3D Capability

SVG excels at crisp, precise 2D graphics — icons, illustrations, charts, logos — with simple DOM-based manipulation and broad accessibility support. Three.js is a JavaScript library for rendering true 3D scenes via WebGL, handling geometry, lighting, and cameras that SVG has no concept of.

SVG: precise, accessible 2D vector graphics via the DOM
Three.js: full 3D scene rendering using WebGL under the hood
Complexity and learning curve are significantly higher for Three.js

Performance and Use Case Considerations

SVG is lightweight and performs well even on lower-powered devices for typical UI graphics. Three.js scenes require GPU-accelerated rendering and more careful performance optimization, but enable interactive 3D experiences entirely impossible with SVG alone.

SVG: lightweight, good performance even on modest hardware
Three.js: GPU-dependent, needs careful performance management
Use Three.js only when true 3D interactivity is a real requirement

Frequently Asked Questions

Should I use Three.js just to add depth to my icons?

No — for icon depth or pseudo-3D effects, SVG with shadows, gradients, and CSS transforms achieves a similar visual result with far less complexity and better performance than Three.js.

Can SVG and Three.js be used together on the same page?

Yes — many sites use SVG for UI icons and graphics alongside a Three.js canvas for a hero 3D scene, since they serve different purposes and don't conflict.

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