CAD & 3D converters

Exchange geometry between mesh formats and prepare 3D models for printing or web viewing.

  • stl
  • obj
  • step
  • iges
  • dwg
  • 3mf

2 tools

GLTF to GLB

CAD & 3D

Pack a self-contained glTF model into the single-file GLB binary format.

GLTF GLB

GLB to GLTF

CAD & 3D

Unpack a GLB binary model into a self-contained glTF JSON file.

GLB GLTF

Supported formats

Every format you can work with in the cad & 3d category. Individual tool pages list their exact input and output pairs.

  • stl
  • obj
  • step
  • iges
  • dwg
  • 3mf

CAD & 3D questions

Answers that apply across this category.

Does converting a 3D model change its geometry?

Mesh conversions keep the triangles but may adjust units or the coordinate system. Always verify dimensions before printing.

Working with cad & 3d files

Exchange geometry between mesh formats and prepare 3D models for printing or web viewing.

Conversions in this category are designed to run on your device wherever the browser makes it possible. Where a format needs a codec the browser does not ship, the tool downloads that codec as a WebAssembly module the first time you use it, and the page tells you before you start.

Nothing is uploaded for supported tools. If a future tool needs to process a file on a server, that will be stated on the tool page before you select a file, along with how long the file is kept.