WebGL vs Three.js: A Production Decision Checklist for 3D Websites

The WebGL vs Three.js decision is usually framed as a technology preference.

That is too shallow.

For production websites, the better question is: which level of control does this experience actually need?

Raw WebGL gives maximum control and maximum responsibility. Three.js gives a production-friendly abstraction for most immersive website work. The wrong choice is less about prestige and more about maintainability.

Use Three.js when

• the project needs 3D scenes, not a custom rendering engine
• the team needs faster iteration
• the experience depends on models, camera movement, lights, materials, and scroll interactions
• the project needs a broader hiring/support surface
• the business goal is a reliable immersive website, not graphics research

Use raw WebGL when

• the rendering requirement is unusually custom
• the team needs shader-level control everywhere
• existing abstractions create unacceptable overhead
• the project has graphics engineering capacity after launch

The production checklist

1. What is the target device class?
2. What is the performance budget?
3. Who will maintain the scene after launch?
4. Does the experience need custom shaders or expressive 3D composition?
5. What fallback exists for weaker devices?
6. How much of the story still works if the 3D layer is reduced?

MDX published the longer WebGL vs Three.js decision guide here:
https://mdx.so/blog/webgl-vs-three-js-which-technology-for-your-3d-website

And the companion WebGL development guide is here:
https://mdx.so/blog/webgl-development-how-to-build-immersive-3d-web-experiences-in-2026

Disclosure: drafted with AI assistance, then reviewed and edited before publishing.