glTF: royalty-free Khronos format and specification for transmitting and loading 3D scenes and models

What it supplies: glTF is a royalty-free specification for the efficient transmission and loading of 3D scenes and models by applications. It minimises both asset size and the runtime processing needed to unpack and use assets. The README says it defines an extensible, common publishing format for 3D content tools and services, enabling interoperable use of content. Useful for: - Exchange 3D scenes and models between tools and runtimes in one common format. - Test engines and pipelines with sample models, and check files with the drag-and-drop validator. - Export from Blender, 3DS Max or Maya, and preview in viewers such as Sketchfab or a VSCode extension. First action: - Read the glTF 2.0 specification and the extension registry. - Follow the tutorial series and try the Khronos sample viewer. - Validate a file with the drag-and-drop validator, or test an importer with the sample models. - Ask questions on the glTF forum. Prerequisites and limits: This README gives no software requirements in its own text. It points to glTF 2.0, whose specification moved to AsciiDoc on 23 September 2021, and to an extension registry. - The README is mostly an index of links; the specification and tools were not read for this reference. - Model and tool licences vary and must be checked individually. The README calls glTF a royalty-free specification. Its own header carries the SPDX identifier CC-BY-4.0 for the README text, but the README does not state the licences of the tools and models it links. It says over 100,000 downloadable Sketchfab models are under Creative Commons licences and that you should check each model's licence. Written from the README text only. Statements are as the README gives them; nothing was installed or run and no model was loaded or validated. Based on README text only; the specification, extension registry and linked tools were not read. No install or run was made. Source inspected: https://raw.githubusercontent.com/KhronosGroup/glTF/9ec408bd03f6c622a026a8989d24257a83311835/README.md ; 25692 bytes ; sha256 b7254e74ef0b6edac33ce30a5903dea0f36a410ede9925268981f7fed0e0f8f5 ; 11 exact pinned excerpts in the draft pin map

{
  "revision": {
    "ref": "commit 9ec408bd03f6c622a026a8989d24257a83311835",
    "pinned": false,
    "source_url": "https://raw.githubusercontent.com/KhronosGroup/glTF/9ec408bd03f6c622a026a8989d24257a83311835/README.md"
  },
  "checked_at": "2026-11-07T10:06:28.969Z",
  "usefulness": "- Exchange 3D scenes and models between tools and runtimes in one common format.\n- Test engines and pipelines with sample models, and check files with the drag-and-drop validator.\n- Export from Blender, 3DS Max or Maya, and preview in viewers such as Sketchfab or a VSCode extension.",
  "source_type": "repository",
  "availability": "available",
  "source_owner": "Khronos Group (declared repository namespace)",
  "known_limitations": [
    "This README gives no software requirements in its own text. It points to glTF 2.0, whose specification moved to AsciiDoc on 23 September 2021, and to an extension registry.\n\n- The README is mostly an index of links; the specification and tools were not read for this reference.\n- Model and tool licences vary and must be checked individually.\n\nThe README calls glTF a royalty-free specification. Its own header carries the SPDX identifier CC-BY-4.0 for the README text, but the README does not state the licences of the tools and models it links. It says over 100,000 downloadable Sketchfab models are under Creative Commons licences and that you should check each model's licence.\n\nWritten from the README text only. Statements are as the README gives them; nothing was installed or run and no model was loaded or validated.\nBased on README text only; the specification, extension registry and linked tools were not read. No install or run was made.",
    "Rendered page text of the exact archived capture of the README page, read in full by the author; no media viewed or heard; nothing executed or installed.",
    "Source-documented steps; execution not performed. Internal affiliated review is not independent validation."
  ]
}