Optimize GLB Files Online — Reduce File Size for Web Delivery
Optimize your GLB (glTF Binary) files for faster Web3D, AR, and VR loading.
Last updated Mar 2026
Usually under 3 seconds — depends on file size.
When to Use GLB Optimizer
WebXR Performance
Large GLB files (>5MB) cause slow initial load in WebXR experiences. Optimize to reduce loading time on mobile networks.
AR Mobile Apps
ARKit and ARCore have file size constraints. Optimize large models to fit within limits for smooth AR experiences.
E-commerce 3D Product Viewers
Shopify 3D and WooCommerce AR recommend small GLB files for fast page load. Optimize product models for better customer experience.
Three.js Bundle Size
Embedding large GLB files in your Three.js app increases load time. Optimize before bundling or hosting on a CDN.
Multi-Model Scenes
Loading multiple GLB models in a single WebXR scene? Optimize each model to reduce total scene load time.
How It Works
Our GLB optimizer applies multiple techniques to reduce file size:
Mesh Quantization reduces vertex precision from 32-bit floats to 16-bit integers. File size reduction: 30-50%. Visual impact: negligible (sub-pixel precision loss). This is a lossy operation that must be explicitly enabled.
Vertex Deduplication removes duplicate vertices, textures, and materials from the mesh. File size reduction: 10-20%. No visual impact. This is a lossless operation.
Unused Data Pruning removes unreferenced nodes, meshes, materials, and textures. File size reduction: 5-10%. No visual impact. This is a lossless operation.
Typical processing time: 2-5 seconds for files under 10MB.