---
title: "GLB Compression Guide (Draco)"
description: "Compress GLB files using Draco mesh compression and texture optimization. Reduce file size for faster web loading."
source: https://docs.3daistudio.com/utilities/glb-compression
---

# GLB Compression

Compress GLB files using Draco mesh compression and texture optimization. Reduce file size for faster web loading.

[Open GLB Compression Tool](https://www.3daistudio.com/Tools/GLBCompression)

The GLB Compression tool reduces your 3D model file sizes using Draco mesh compression and texture optimization. Smaller files load faster on the web, use less bandwidth, and improve the experience for viewers on mobile devices.

![GLB Compression interface showing file size reduction](https://docs.3daistudio.com/assets/images/docs/proc-compress.jpg)

*Upload a GLB file and see the compressed result with size comparison*

## How it works

The tool applies two types of optimization:

**Draco mesh compression** - Encodes the geometry data (vertices, normals, UVs) into a compact format. Most 3D viewers and game engines support Draco decoding natively.

**Texture optimization** - Reduces texture resolution and applies efficient compression while preserving visual quality. This often provides the biggest file size savings.

## Typical results

Most models see a 50-80% reduction in file size. The visual difference is minimal for the majority of use cases, especially for web display.

## Rate limits

- **Free users** - 2 compressions per week
- **Paid plans** - 10 compressions per day

## How to use

1. Open the tool and upload a GLB file
2. The tool compresses the model automatically
3. Compare the before and after file sizes
4. Download the compressed version

## Related Tools

- Need to reduce poly count, not just file size? Use the [Remesh Tool](https://docs.3daistudio.com/processing/remesh)
- Preparing for web? GLB is the best format for web viewers and AR. See [Export Formats](https://docs.3daistudio.com/export-formats)
- Need to convert to other formats? Use [Format Conversion](https://docs.3daistudio.com/utilities/format-conversion)
- Deploying to a game engine? Check the [Integrations guides](https://docs.3daistudio.com/integrations) for engine-specific tips

## Frequently Asked Questions

### How much can I compress a GLB file?

Most models see a 50-80% reduction in file size when using 3D AI Studio's GLB Compression tool. The exact savings depend on the model's geometry complexity and texture resolution. Visual quality stays nearly identical for web display and most other use cases.

### What is Draco compression?

Draco is an open-source compression library by Google that encodes 3D mesh data (vertices, normals, UVs) into a much smaller format. 3D AI Studio applies Draco compression along with texture optimization to minimize your GLB file size. Most modern 3D viewers, game engines, and web frameworks support Draco decoding natively.

### Is there a limit on how many files I can compress?

Free users get 2 compressions per week, while paid plans on 3D AI Studio allow 10 compressions per day. Each compression runs automatically once you upload a GLB file, and you can download the optimized version right away.

### Will compressed GLB files work in game engines and web viewers?

Yes. Draco-compressed GLB files are supported by Three.js, Babylon.js, Unity, Unreal Engine, and most modern 3D tools. 3D AI Studio's compression produces standard Draco-encoded GLB files that load faster without compatibility issues.

---

> Documentation index for AI agents: https://docs.3daistudio.com/llms.txt