GLB & glTF optimization blog

Practical guides to making 3D models smaller and faster: file formats, compression, export settings and loading them on the web.

Tutorial

How to Reduce GLB File Size in Blender (Export Settings, Decimate & Draco)

Reduce GLB file size in Blender: cut polygon count with Decimate, resize textures, and pick the right glTF export settings for Draco, WebP and animation.

8 min read

Comparison

Draco vs Meshopt: Which glTF Geometry Compression Should You Use?

Draco vs Meshopt for GLB and glTF: compressed size, decode speed, gzip and Brotli, animation and engine support, and which one to use for your model.

8 min read

Tutorial

gltf-transform optimize: A Practical Guide to Shrinking glTF/GLB Files

How to use gltf-transform optimize to shrink GLB and glTF files: every flag and default, Draco vs Meshopt, --texture-size, WebP and KTX2, scripting and fixes.

8 min read

Comparison

glTF vs GLB: What's the Difference and Which Should You Use?

GLB vs glTF explained: the same glTF 2.0 data in different packaging. Compare size, editing, HTTP requests and caching, and learn how to convert between them.

6 min read

Guide

How to Reduce GLB File Size: 8 Techniques That Actually Work

Reduce GLB file size step by step: find what makes it big, resize and convert textures, apply Draco or Meshopt, and clean up geometry, with real test results.

11 min read

Guide

How to Add 3D Models to Shopify Products (and Keep Them Fast)

How to add 3D models to Shopify products: GLB and USDZ rules, the 500 MB limit, the AR button, and how to shrink GLB files so product pages stay fast.

8 min read

Tutorial

How to Load and Optimize GLB Models in three.js and React Three Fiber

Load GLB models in three.js with GLTFLoader, add DRACOLoader, KTX2 and Meshopt decoders, fix common errors, and use useGLTF and gltfjsx in React Three Fiber.

8 min read

Guide

What Is a GLB File? How to Open, View, Edit and Convert GLB Files

What a GLB file is, what's inside it, and how to open a GLB file on Windows, Mac, Linux, phones or online, plus how to edit, convert and shrink it.

7 min read

Deep dive

Draco Compression for GLB & glTF: How Much It Saves and How to Use It

How Draco compression shrinks GLB and glTF geometry, how much file size reduction to expect, Draco vs Meshopt, and how to load Draco models in three.js.

8 min read