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GLTF Texture Compression

Resize, convert, and compress textures in your GLTF models to drastically reduce file size.

About This Tool

This tool extracts and optimizes all textures from your GLTF model using glTF-Transform. It can resize textures, convert to more efficient formats like WebP/JPEG, and apply Draco encoding for geometry compression. All processing is done locally in your browser.

Tips

  • 1Maximum file size: 200MB
  • 2Supports GLTF format input, exports as GLB
  • 3Texture resize supports: 512px, 1024px, 2048px, 4096px
  • 4Output formats: JPEG, WebP, PNG, or keep original

How to Use

1

Upload Model

Drag and drop your GLTF file or click to browse

2

Review Textures

View all extracted textures with their sizes and types

3

Configure & Compress

Set max size, output format, quality, then compress

Frequently Asked Questions

Q

What textures will be compressed?

A

The tool automatically detects and processes all texture maps in your model including diffuse/albedo maps, normal maps, roughness maps, metallic maps, ambient occlusion maps, and emissive maps.

Q

Which output format should I choose?

A

WebP offers the best compression ratio for web use. JPEG is good for photographs/diffuse maps without transparency. PNG is best when you need lossless compression or alpha channel. Keep original if you don't want format conversion.

Q

Will normal maps be affected?

A

Normal maps are compressed using the same settings as other textures. For best results with normal maps, consider using PNG (lossless) or keeping the original format to avoid artifacts that could affect surface appearance.

Q

What is the recommended max texture size?

A

For most web applications, 1024px or 2048px is sufficient. Going below 1024px may cause visible blurriness. The original size option preserves full resolution.