Format conversion
Use this glb to obj guide to inspect your source model, understand what may change between formats, and make better decisions before exporting or handing the asset to another tool.
These related guides cover the checks that matter before or after moving a model between 3D formats.
The best workflow depends on what you need from the exported asset, not just the file extension.
You received a GLB and need to confirm its shape before sending it to a legacy pipeline.
Inspect the model visually first, then export only after the geometry looks correct. The guide to what is glb viewer explains the inspection step.
what is glb viewerA model lives in a browser workflow but another application requests OBJ.
Use an online inspection surface to catch missing parts or orientation issues before the handoff. See glb viewer online for that review context.
glb viewer onlineThe source asset depends on visible materials or image maps.
Check the model with its texture information before assuming the OBJ export will reproduce the same appearance. The glb viewer with texture guide focuses on this risk.
glb viewer with textureThe GLB contains motion that matters to the final experience.
Record or preserve the animation requirement separately, because a plain OBJ handoff is not a substitute for an animated asset. Review glb animation viewer for the distinction.
glb animation viewerTreat the format change as an inspection and handoff process with a deliberate check between each stage.
Open the GLB and check scale, orientation, visible geometry, materials, textures, and any animation clips that must be preserved elsewhere.
Use a converter or 3D application that supports GLB input and OBJ output. Choose the export settings required by the destination workflow.
Open the resulting OBJ in its destination tool and confirm the mesh, normals, material references, texture paths, scale, and orientation.
These figures describe the structure of the handoff, not a guaranteed export result.
A format change can alter what travels with the mesh. Plan for these gaps instead of treating the extension change as lossless.
OBJ is primarily a static geometry format, so skeletal motion and animation clips from a GLB should not be expected in the exported file.
WorkaroundKeep the original GLB for interactive motion, or deliver animation through a format and pipeline that explicitly support it.
An OBJ commonly relies on a companion MTL file and separate image paths, while a GLB can package more of the asset relationship together.
WorkaroundExport the MTL and texture images together, then verify that relative paths remain valid in the destination folder.
Multiple objects, nodes, cameras, lights, and scene-level relationships may not map cleanly into a simple OBJ mesh exchange.
WorkaroundConfirm which meshes are required and organize or name them before export when the receiving application depends on object separation.
Different tools interpret units, up axes, and forward directions differently, so a visually correct source can arrive rotated or resized.
WorkaroundWrite down the source convention and check dimensions and axis orientation after opening the OBJ.
Use this comparison to decide whether OBJ is suitable for the next stage of your workflow.
GLB
OBJ
GLB
Binary 3D asset container
OBJ
Text-based geometry exchange format
GLB
Stores mesh geometry inside the GLB package
OBJ
Stores mesh geometry in an OBJ text file
GLB
Can associate materials within the packaged asset
OBJ
Typically uses a separate MTL companion file
GLB
Can package or reference image assets depending on how it was created
OBJ
Usually depends on external image files and correct paths
GLB
Can carry animation data for supported workflows
OBJ
Not designed to carry skeletal or clip animation
GLB
Convenient for modern real-time and web workflows
OBJ
Widely recognized by many legacy and interchange tools
GLB
Binary and not intended for manual editing
OBJ
Plain text and inspectable in a text editor
Open the source model, check what must survive the format change, and use that inspection to guide the next export step. Keeping the original GLB gives you a reference when the OBJ looks different in another application.
Inspect your GLBOpen the GLB in a 3D application or converter that supports both formats, then choose OBJ as the export format. After exporting, verify the mesh, scale, materials, and texture references in the destination tool.
Not necessarily. OBJ commonly uses an MTL file plus separate image files, so you may need to export those companions and preserve their relative paths alongside the OBJ.
OBJ is generally intended for static geometry and does not provide the same animation structure as GLB. Keep the original animated asset or use an animation-capable format for that part of the workflow.
Differences can come from missing materials, broken texture paths, changed normals, unsupported scene structure, scale settings, or axis conventions. Compare the exported file with the original and inspect it in the receiving application.