📦OptimizeGLB
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📦 OptimizeGLB

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  • OptimizeGLB vs Compress-GLB
  • OptimizeGLB vs iCraft
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Reduce up to 99% of file size

Compress locally in your browser for free. Improve fps by optimizing your 3D models.

optimizeglb.com is fully free to use, try now

Click to upload or drag and drop

GLB/GLTF files only

No account required for local compression.

50,000+ compressions and counting

Advanced options

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

Loading time

Compressing your GLTF and GLB models can significantly reduce loading times, making your applications faster and more responsive.

Improve fps

Compressing models lead to better performance in 3D scenes, resulting in higher frames per second (FPS) and a smoother user experience.

Wide support

Whether you are using Unity, Unreal Engine, and other 3D engines, our compressed models are compatible.

100% Private, 100% Free
Browser-only

Everything runs locally in your browser using WebAssembly. Your models are never uploaded to a server — there is nothing to upload to.

No account, no credits, no file size limits, no expiry. Compress as many models as you want.

Why Choose OptimizeGLB?

  • Effective Compression Significantly decrease your file sizes, without losing quality and structure of the models.
  • Quick Process Processing runs instantly in your browser — no upload or download round-trips.
  • Built on a Strong Foundation Thanks to @donrmccurdy for creating gltf-transform, the conversion is well maintained and constantly up-to-date.

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? Use the feedback 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 to compress GLB files and compare the best tools in 2026.

Best GLB compressors

See the latest comparison of the top GLB compression tools.

View comparison →

99% compression guide

Learn the exact pipeline for extreme GLB compression.

Read guide →

Client vs server

Privacy and performance differences explained.

Read comparison →

Changelog

Stay updated with our latest changes and improvements.

Jun 13, 2026
New

OptimizeGLB is now 100% free and browser-only

All compression now runs locally in your browser - no accounts, no credits, no uploads. Your files never leave your device. Also new: .gltf input support, clearer error messages, proper output filenames (yourmodel-optimized.glb), a built-in before/after comparison viewer, and a contact form for custom pipeline, high-volume, or licensing requests.

Dec 30, 2025

Free local compression now available

Compress your GLB and GLTF files directly in your browser for free. No account required for local processing. Cloud credits are now optional and only needed for downloadable links and enhanced processing options.

See more changes

Featured In

Mentions and community discussions across the 3D and WebGL ecosystem.

Three.js ForumBabylon.js ForumGitHub DiscussionsReddit r/3Dmodeling

FAQ

Some of our most frequently asked questions.

If you have any questions that are not listed here, please use the feedback button for the fastest resolution.
Alternatively, you can reach out to me at support@optimizeglb.com or dm on X (@antonyadhiban).

Need something custom?

The browser tool is free and unlimited. If you need a custom optimization pipeline, high-volume or automated batch processing (hundreds of models a week), or a local license for your company, get in touch — we build custom setups.

Tell us about your project

Or email us directly at support@optimizeglb.com

Trusted by more than 20,000 users

Trusted by web studios, ed-tech, e-commerce, game devs, digital agencies, and more.

20K+

Users

75K+

Models Optimized

100%

Private — files stay on your device

100% free, runs locally in your browser. No account required.