3D ViewerGLTF Format Guide
GLTF Viewer

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.GLB.GLTF.BLEND.OBJ.STL.DAE.DXF.FBX.PLY.3MF.IFC.BVH.3DS.LXO.X3D.AMF.LWO.MDL.MS3D.OGEX.SMD.AC.ASE.LWS.MD2.MD3.MD5.PK3.SIB.WRL.X.COB.IRR.IRRMESH.MDC.OFF.Q3D.Q3S.RAW.SCN.TER.VTA.XGL.XML.ZGL

Key Features

  • json-based
  • separate-files
  • animations
  • pbr-materials

Why Choose GLTF?

  • web-apps
  • ar-vr
  • games
  • development

Common Use Cases

web-appsar-vrgamesdevelopment

Related Formats

GLB

GLB

.glb
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More compact binary format, faster loading

Try GLB Viewer
Blend

Blend

.blend

Different approach for similar use cases

Try Blend Viewer
OBJ

OBJ

.obj

Simpler format, better compatibility

Try OBJ Viewer
STL

STL

.stl

Different approach for similar use cases

Try STL Viewer

Why Choose Different Formats?

Performance

GLB and GLTF offer the best web performance with optimized loading and rendering.

Compatibility

OBJ provides universal compatibility across all 3D software and platforms.

Features

FBX supports the most advanced features for professional animation workflows.

Quick Format Comparison

FormatFile SizeFeaturesBest For
GLTFCurrent
Mediumjson-based, separate-filesweb apps
GLB
Smallbinary, embedded-texturesWeb
Blend
MediumFull Scene, NodesBlender Workflow
OBJ
Largetext-based, simple-geometryInterchange

Format Conversion Tips

Conversion Recommendations

  • Convert to GLB for production deployment
  • Use external textures during development for easier iteration
  • Optimize texture formats before referencing in GLTF
  • Include proper metadata in the asset section

When to Use GLTF

web apps
ar vr
games

Best Practices for GLTF

✅ Do:

  • Organize external assets in a logical folder structure
  • Use relative paths for external texture references
  • Validate JSON structure with glTF validator
  • Consider using GLB for production to avoid file management complexity
  • Use descriptive names for nodes and materials

⚠️ Watch Out For:

  • Missing external files: Ensure all referenced textures and bins exist
  • Broken relative paths: Use consistent folder structure
  • JSON validation errors: Use proper JSON syntax and glTF schema

Recommended Tools for GLTF

VS Code

Edit GLTF JSON with glTF extension

Visit Website

glTF Viewer

Preview GLTF files

Visit Website

Blender

GLTF export and editing

Visit Website

Quick Tips for GLTF Files

File Size Optimization

  • • Use Draco compression for geometry
  • • Compress textures appropriately
  • • Remove unused materials and nodes

Quality Assurance

  • • Test in multiple viewers
  • • Validate file structure
  • • Check for missing dependencies
  • • Verify proper scaling

Frequently Asked Questions - GLTF Format

Still have questions?

Try uploading your .gltf file to our viewer above, or check out the complete GLTF format guide for more detailed information.