Free online GLTF to X3D converter

A visualization, simulation, CAD, or web-3D application may require X3D when it cannot import glTF or GLB. The conversion also provides an XML-based scene file that can be inspected, scripted, or archived as text.

What glTF is

glTF (GL Transmission Format) is a Khronos Group transmission format for 3D scenes and assets. It can store meshes, node hierarchies, materials, cameras, lights, skinning, morph targets, and animations in a structure optimized for real-time loading in browsers, games, AR/VR systems, product configurators, and asset libraries.

A .gltf file is JSON and normally references a separate .bin buffer and image textures. A binary .glb file normally packages the scene, geometry, and textures into one file, making it easier to move between applications. Blender, Autodesk 3ds Max, Maya, Unity, Godot, and web-based 3D tools can import or export glTF.

What X3D is

X3D is an ISO-standard scene description format derived from VRML. Its commonly used XML encoding, usually saved with the .x3d extension, represents geometry, transformations, viewpoints, lights, materials, textures, animation, and interaction through a scene graph.

The XML encoding is readable and scriptable, which helps with inspection, standards-based interchange, scientific visualization, simulation, education, and virtual-environment applications. X3D also has other encodings, including Classic VRML and binary or compressed forms supported by particular software; not every X3D application accepts every encoding.

Convert on 101convert.com

1. Open the GLTF-to-X3D converter on 101convert.com.
2. Upload the source .glb or .gltf file and select X3D as the output format.
3. For a .gltf source, include its referenced .bin file and texture images if the uploader requests them. Keep their relative filenames and paths intact; a .glb file is generally simpler because its resources are packaged.
4. Start the conversion, then download the generated .x3d file and any separately produced texture files.
5. Open the result in the target application or an X3D viewer. Keep the X3D file and external textures together unless the destination supports an explicitly packaged X3D encoding.

Online conversion is suitable for ordinary, non-sensitive assets and requires no software installation. Do not upload confidential models unless the service’s file-retention and privacy terms meet your requirements.

Convert with Blender

Blender provides a practical desktop workflow because you can inspect the imported scene and correct transforms or materials before exporting. Current Blender installations may provide the X3D/VRML exporter as an extension or add-on rather than enabling it by default; install or enable that component if the X3D export command is missing.

1. Open Blender and choose File → Import → glTF 2.0 (.glb/.gltf).
2. Select the source file. If it is .gltf, keep the referenced .bin file and image textures in their expected relative locations.
3. Inspect the scene in the 3D Viewport. Check object visibility, orientation, scale, cameras, lights, material appearance, armatures, and animation actions.
4. Choose File → Export → X3D Extensible 3D (.x3d/.wrl). Menu names and available options vary with Blender version and the installed exporter extension.
5. Enable Selected Objects when only selected objects should be exported, choose an output path, and save with the .x3d extension.
6. Open the export in the destination software or an X3D viewer and verify geometry, textures, viewpoints, and required animation.

Quality and compatibility limits

Materials are usually the main source of visual differences. glTF commonly uses metallic-roughness PBR materials, while X3D consumers may expose simpler diffuse, specular, transparency, or Phong-style properties. Metallic reflections, roughness, normal maps, emissive effects, alpha modes, and texture color handling can therefore change even when the mesh converts correctly.

Coordinate systems, axis orientation, unit scale, camera direction, and light behavior can differ between the source and destination. Correct these in Blender before export when possible, then verify scale and orientation in the X3D application.

Static meshes normally transfer more reliably than animated or interactive scenes. Skeletal animation, morph targets, constraints, animation timing, event routes, physics, and application-specific scripts may be omitted or altered because glTF and X3D model these features differently. Test every animation or interaction required by the destination.

Textures may remain external references in the XML X3D file. Preserve their filenames and relative paths, and check that the destination supports the image formats used by the source. A conversion changes the scene representation; it does not guarantee identical rendering or a smaller output file.