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Free online GLB/GLTF converter. Draco, Meshopt, KTX2, WebP.

Convert glb to gltf online — and back

Free GLB/GLTF converter online. Reduce your 3D file size without breaking materials, textures or animations. Optimized for Shopify, Three.js, AR and mobile. In seconds, no software install.

glbgltf

Runs 100% in your browser.

What it does

Production-grade compression. No quality regressions.

Smart decimation

Reduce polycount while preserving silhouettes. Vertices are merged based on surface curvature and UV seams.

Texture compression

Convert heavy 8K textures to WebP or KTX2/Basis. Automatic resizing and normal map optimization.

Draco & Meshopt

Industry-standard geometry compression that works out of the box with Three.js, Babylon.js and React Three Fiber.

Preserves what matters

Animations, materials, UVs and hierarchy stay intact. Transparency and PBR fidelity are protected.

Before / after diagnostics

See file size, triangle count, draw calls and estimated load time — measured, not guessed.

One clean GLB

Unused nodes, duplicate meshes and stale metadata removed. Everything packed into a single ready-to-ship .glb.

Presets

Four buttons. Zero guesswork.

Skip the 50-parameter export dialog. Pick where your model is going and we tune geometry, textures and materials for that target.

WEBTypical: 180 MB → 18 MB

Web / Three.js

Fast first paint in the browser.

  • Draco or Meshopt geometry
  • WebP / KTX2 textures
  • Unused node cleanup
  • Moderate texture downscale
SHOPIFYTypical: 120 MB → 14 MB

Shopify 3D

Light enough for product pages, validated by Shopify.

  • Textures capped at 2K
  • Aggressive geometry compression
  • Clean GLB output
  • Target under 15–20 MB
ARTypical: 90 MB → 8 MB

AR / Mobile

iOS, Android, WebAR — fast on cellular.

  • Simplified geometry
  • Mobile-safe materials
  • Reduced textures
  • GLB / USDZ ready
MAXTypical: 200 MB → 6 MB

Maximum compression

When every kilobyte counts.

  • Stronger decimation
  • Textures capped at 1K
  • Strip unused data
  • Smallest possible payload
Pricing

Pay per file. Or scale with us.

Free

$0no card

Try it on one file.

  • 1 free conversion
  • Up to 200 MB upload
  • All presets
  • Browser preview

24h Pass

$9one-time

Unlimited conversions for 24 hours.

  • Unlimited conversions for 24h
  • Files up to 200 MB
  • All presets
  • No subscription

Pro

$9/month

For solo creators shipping models every week.

  • Unlimited conversions
  • Files up to 200 MB
  • Batch ZIP export
  • Conversion history

Studio

$49/month

For teams and agencies.

  • Everything in Pro
  • Team seats
  • API access
  • Priority queue
FAQ

Questions, answered.