Optimize 3D GLB models for faster loading. Reduce file sizes by up to 70% with mesh compression and Draco encoding.
Upload a GLB/glTF 3D model from your 3D software, AI generator, or existing asset library. Supports files up to 100MB.
Choose compression options: Draco mesh encoding, texture format (WebP, AVIF, JPEG), texture size limits, and geometry simplification.
Get your optimized GLB file with reduced file size while maintaining visual quality. Save to Sirv CDN for fast global delivery.
Industry-standard mesh compression reduces geometry data by 80-90% with minimal visual impact. Compatible with Three.js, Unity, and all major viewers.
Convert textures to modern formats (WebP, AVIF) with Sharp for high-quality compression. Resize large textures to reduce file size.
Reduce polygon count with meshoptimizer's simplification algorithm. Adjustable ratio preserves detail where it matters.
Remove duplicate vertices, materials, and textures. Prune unused data that bloats file size without visual benefit.
Enable GPU instancing for repeated geometry. Reduces draw calls and improves rendering performance.
Merge nearby duplicate vertices to reduce mesh complexity while preserving smooth normals and UVs.
Flatten node hierarchy and join separate meshes to reduce scene complexity and improve load times.
No credit cost or usage limits. Process as many models as you need, completely free.
Choose the right settings for your use case
Optimized GLB files work everywhere
Reduce 3D product model sizes for faster page loads. Optimized GLB files improve Core Web Vitals and conversion rates.
Prepare 3D assets for WebGL applications, configurators, and interactive web experiences with minimal load times.
Optimize models for augmented and virtual reality apps where file size impacts download speed and memory usage.
Reduce asset sizes for faster game downloads and better runtime performance on mobile and web platforms.
Optimize models from AI tools like Meshy, Trellis, or Seed3D that often output unoptimized geometry.
Make your 3D portfolio load faster with optimized models that maintain visual quality.
GLB optimization reduces 3D model file sizes through techniques like Draco mesh compression, texture resizing and format conversion, and removing duplicate data while preserving visual quality. A typical model can be reduced by 50-80%.
Yes! This tool is completely free with no credit cost or usage limits. Processing happens on our servers using Sharp for high-quality texture compression.
Draco is Google's open-source library for compressing 3D meshes. It significantly reduces geometry data size (80-90%) with minimal visual impact. Most modern 3D viewers support Draco, including Three.js, Unity, and model-viewer.
The default settings preserve visual quality while reducing file size. Draco compression is visually lossless. Texture compression uses high-quality WebP. You can adjust simplification ratio if you need to balance quality vs. file size.
WebP offers the best balance of quality and compression for web delivery. AVIF provides even smaller files but has less browser support. JPEG is good for photos without transparency. PNG preserves transparency but has larger file sizes.
Some older viewers don't support Draco compression. Disable the Draco option to output standard GLB files. Note that file sizes will be larger without Draco compression.
Simplification reduces polygon count while preserving the overall shape. A 50% setting keeps roughly half the triangles. Lower values create smaller files but may lose fine details. The algorithm prioritizes keeping visually important edges.
AI 3D generators often output models with unoptimized geometry and large textures. This tool is perfect for preparing AI-generated models for web or game use, often reducing file sizes by 70% or more.