# donmccurdy/glTF-Transform

glTF 2.0 SDK for JavaScript and TypeScript, on Web and Node.js.

Repository: https://github.com/donmccurdy/glTF-Transform
Canonical: https://ross.abutalabs.com/products/gltf-transform
Homepage: https://gltf-transform.dev
Language: TypeScript
License: MIT
License Family: permissive
Topics: 3d, gltf, glb, scene-graph, mesh-processing, compression, optimization
Last push: 2026-08-26T14:12:32+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 2903, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1951, forks 200 (observed 2026-08-28T04:05:58.188017+00:00)

## What it is
glTF Transform is an SDK for reading, editing, and writing glTF 2.0 3D models in JavaScript and TypeScript, running on both Web and Node.js. It provides a scripting API, extension support, common optimization functions, and a CLI for inspecting, bundling, splitting, and optimizing glTF/GLB files.

## Use cases
- optimize glTF models for web delivery
- compress glTF meshes with Draco or Meshopt
- convert textures in glTF files to WebP or KTX2
- batch process 3D model assets in a build pipeline
- inspect and validate glTF files from the command line
- programmatically edit scene graphs, materials, and animations
- split or merge glTF scenes and deduplicate geometry
- build custom glTF extensions in TypeScript

## When to choose
- you need reproducible, lossless, scriptable edits to glTF 2.0 assets
- you want to optimize 3D models for web or mobile delivery in CI
- you're building web apps that read or transform glTF at runtime
- you need CLI tooling to inspect, validate, and optimize GLB files

## When to avoid
- you need artistic modeling changes like sculpting or UV unwrapping — use Blender or a DCC tool instead
- you work with formats other than glTF 2.0 (e.g., FBX, OBJ)
- you need a visual scene editor rather than programmatic transforms

## Facets
- artifact type: library
- maturity: active
- function: sdk, cli, compression, image-processing, parser, developer-tools
- domain: graphics, web-development, developer-tools, files, cross-platform
- platform: cli, wasm, cross-platform
- tags: gltf, glb, 3d-models, mesh-processing, scene-graph, draco, meshoptimizer, texture-compression, 3d-optimization, nodejs, web-server, deno

## Member repositories
- donmccurdy/glTF-Transform (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:58.188017+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:06:49.073226+00:00, confidence not recorded.
  - readme: https://github.com/donmccurdy/glTF-Transform (fetched 2026-08-28T04:05:58.188017+00:00, sha 21cc06ec6ac3)
  - homepage: https://gltf-transform.dev (fetched 2026-08-29T10:46:42.772057+00:00, sha f72d9be632d9)
  - site_page: https://gltf-transform.dev/modules/extensions/classes/EXTMeshFeatures (fetched 2026-08-29T10:46:42.777537+00:00, sha 0ed0590bd9df)
  - site_page: https://gltf-transform.dev/cli (fetched 2026-08-29T10:46:42.775515+00:00, sha 4b6d3cb62266)
- Data as of 2026-08-30T08:39:29.467469+00:00.