📦OptimizeGLB
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📦 OptimizeGLB

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Comparisons

  • GLB Tool Comparison
  • OptimizeGLB vs Compress-GLB
  • OptimizeGLB vs iCraft
  • OptimizeGLB vs 3DAiStudio

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Compress GLB and glTF files locally

Tune textures and geometry in your browser, compare the result, and download it directly.

optimizeglb.com is fully free to use, try now

Click to upload or drag and drop

GLB, or GLTF with its .bin and texture files

No account required for local compression.

Your selected model files are processed on this device, not uploaded for compression.

Advanced options

Compression settings with advanced options like texture quality, mesh optimization, etc for optimal file size and quality.

Loading time

Smaller model downloads can improve loading time. Measure the optimized model in your target scene and devices.

Reduce runtime workload

Texture resizing and optional mesh simplification can reduce GPU memory and geometry work. Measure the result in your target scene.

Compatibility controls

Choose conservative settings or enable extensions such as Draco only when your target loader supports them.

Local model processing, free to use
Browser-only

Compression runs locally in your browser using WebAssembly. Model files you select are not uploaded to OptimizeGLB for processing.

There is no account, credit balance, or service-side usage quota. Practical file size and speed depend on your browser memory and device.

Why Choose OptimizeGLB?

  • Adjustable Compression Choose conservative settings or opt into lossy texture and mesh changes, then inspect the result before shipping it.
  • Direct Process Processing runs in your browser without model upload round-trips; duration depends on the model and device.
  • Open-source Foundation The optimization pipeline uses glTF Transform, with output based on the open glTF 2.0 format.

Enhance Your 3D Workflow

OptimizeGLB is the practical choice for developers, designers, and 3D artists looking to manage file size constraints efficiently. Our tool is here to support your projects in gaming, AR/VR, and beyond, facilitating quicker load times and smoother rendering.

Support & Custom Requests

Found an issue? Select the Need help? button for the fastest resolution, or email support@optimizeglb.com.

Need a custom optimization pipeline, high-volume batch processing, or a local license for your company? Get in touch.

You can also DM @antonyadhiban on X.

Guides and comparisons

Learn how the settings work and compare local and hosted workflows.

GLB tool comparison

Compare processing location, access, formats, and published features.

View comparison →

Compression options

Understand texture, geometry, compatibility, and lossy settings.

Read documentation →

Local vs hosted

Privacy and performance differences explained.

Read comparison →

Optimize for your exact 3D workflow

Compression settings are only safe when the destination can decode them. Pick your framework, engine, or publishing pipeline for a tested workflow and compatibility checklist.

Three.js

Optimize GLB for Three.js

Configure Draco, Meshopt, and KTX2 correctly, package sidecars, and measure real browser performance.

Read guide →

Babylon.js

Optimize GLB for Babylon.js

Build a conservative baseline, register loaders, and own the codec files your production viewer needs.

Read guide →

React Three Fiber

Optimize GLB for React Three Fiber

Use OptimizeGLB, Drei, and gltfjsx without double-transforming assets or hiding loader failures.

Read guide →

Blender

Blender to optimized GLB

Prepare a clean scene, export a portable baseline, optimize once, and validate materials and animation.

Read guide →

Shopify

Optimize 3D models for Shopify

Balance product detail, mobile loading, theme integration, and AR compatibility with a safe storefront preset.

Read guide →

Unity

Optimize GLB for Unity glTFast

Pair compression with the right decoder packages and verify shaders, diagnostics, and player builds.

Read guide →

Unreal Engine

Optimize GLB for Unreal Engine

Use a compatibility-first Interchange workflow and separate exchange size from cooked runtime cost.

Read guide →

Browse all optimization guides →

Changelog

Current local-tool updates, with former cloud features clearly marked as discontinued.

Jun 13, 2026
New

OptimizeGLB is now 100% free and browser-only

All model compression now runs locally in your browser - no accounts, credits, or model-file uploads. Also new: .gltf input support, clearer error messages, proper output filenames (yourmodel-optimized.glb), and a built-in before/after comparison viewer.

Dec 30, 2025

Historical: local compression introduced; cloud option discontinued

This release introduced local browser compression. At the time, a separate cloud-credit workflow remained available. That cloud workflow, its accounts, and its credits have since been discontinued.

See more changes

Open glTF resources

First-party specifications, tools, and sample assets for checking your output and target workflow.

Khronos glTF specificationglTF Transform documentationKhronos glTF ValidatorKhronos sample assets

FAQ

Some of our most frequently asked questions.

If you have a question that is not listed here, select Need help? or email support@optimizeglb.com.

Need something custom?

OptimizeGLB has no service-side compression quota; practical batch limits depend on your browser and device. Share a workflow request or ask about implementation help.

Talk to Antony

Start a private conversation for product support, bug reports, or custom project enquiries.

Email privately

Private messages are handled in OptimizeGLB's dedicated Featurebase workspace. Text and any screenshot you intentionally attach are sent to Featurebase; model files are never attached automatically.

A practical local workflow for web 3D

Use it when you need hands-on control over model size without sending the asset to a compression service.

Local model processing

Model files stay on your device during compression.

Settings you can inspect

Adjust texture, mesh, and compatibility options for each workflow.

Batch and compare

Process a queue, inspect before and after, then download the files you want.

Free to use, runs locally in your browser. No account required.