Three.js and 3D websites that still load fast on a phone

A heavy model blocks the first screen, so a visitor on a phone sees an empty area or a spinner instead of the offer.

The scene renders 60 frames a second even when nothing moves or when it is off-screen, which drains the battery and heats the phone.

The 3D becomes the message: the headline, prices and contact path sit below an animation that takes all the attention.

Search engines and screen readers get nothing from a canvas, so a page built only in WebGL has little text for them to read.

Motion keeps running for visitors who asked their system for reduced motion.

Nobody tested on an older laptop, so the frame rate drops and the page feels broken.

Use 3D where it shows something a photo cannot: a product that turns, a part to configure, a structure to explore or a brand moment people remember.

Render on demand: the scene draws a frame only when something changes. This site's hero uses React Three Fiber with its frame loop set to demand.

Pause when hidden: an IntersectionObserver stops the scene once it leaves the screen.

Cap the pixel ratio, at 1 to 1.5 on this site, so high-density phones do not render several times the pixels for no visible gain.

Load the 3D code only where it runs, through a dynamic import with server rendering off, so the text and the contact path arrive first.

Give phones and reduced-motion visitors a lighter version. On MAV Boutique, only large screens with a mouse and motion allowed get the 3D plate.

A short check of whether 3D helps your page at all, before any design work

Scene direction: model, lighting, camera and interaction, agreed before the build

Model preparation for the web: conversion to glTF, compression and sizing

A Three.js or React Three Fiber build inside a Next.js site, with the page text in normal HTML

A fallback for phones, older hardware and reduced-motion settings

Performance checks on phone and desktop before launch

For: products or parts that buyers need to see from every side before they buy or ask for a quote.

For: brands where the first impression carries the sale, as long as the 3D sits beside the offer instead of hiding it.

For: software and developer products that want an interactive demo on the landing page.

For: teams that already have a 3D model or CAD file and want it on the web.

Not for: a page whose main job is a fast phone call from search traffic. A sharp photo and a clear button do that better.

Not for: replacing product photos and copy. 3D works next to them, not instead of them.

Not for: browser games. We build interactive scenes for business websites, not game titles.

Week 1, discovery: what the 3D must show, on which devices, and what the visitor should do next.

Weeks 1 to 2, blueprint: a written plan with the scene, the fallback, the pages, the timeline and the price, before any code.

Build and iterate: you review the scene on your own phone and laptop every week, not as a video recording.

Launch: the page goes live with its fallback, analytics and the performance checks above.

After launch: Growth includes 1 month of support for fixes and adjustments.

Growth

Up to 15 pages with a CMS, integrations and custom animations and interactions. A 3D hero or a product viewer on a marketing site fits here.

Enterprise

A configurator, a quoting tool with its own logic and accounts, or a web app built around a scene. Priced after a written scope.

Starter

Up to 5 pages without custom 3D. The right choice when the honest answer to “does 3D help here?” is no.

3D car model

The compressed car on the Uvita Body Shop home page, loaded on demand.

3D where it fits

MAV Boutique phones get a light drawing and never download the 3D code.

Pixel-ratio cap

The highest device pixel ratio this site's own Three.js hero renders at.

Projects shipped

Websites, web apps and integrations delivered over more than ten years.

Clutch

Our rating on Clutch, from clients who hired us.

Building for the web

More than ten years designing and building websites and software for businesses.