3dtoolkit.appFree · 6 formats · on-device
3D model viewer for every format you have
Drop a model in and it renders instantly — orbit it with studio lighting, play its animation clips, read mesh and material stats. Six dedicated viewers cover GLB, glTF, OBJ, STL, PLY and FBX. Everything runs in your browser tab; nothing is uploaded.
Pick your format
GLB viewer
Open GLB files →
The web's default format — materials, textures and animations in one file.
glTF viewer
Open glTF files →
The open standard scene description, JSON + buffers.
OBJ viewer
Open OBJ files →
The universal plain-text mesh, reads anywhere.
STL viewer
Open STL files →
Pure triangles — the language of 3D printing.
PLY viewer
Open PLY files →
Scans and point data with per-vertex color.
FBX viewer
Open FBX files →
DCC interchange with rigs and animation clips.
Shared by every viewer
One viewer, six formats
Orbit & studio light
Turntable controls with physically-based studio lighting, so materials read the way they will in an engine or on the web.
Animation playback
If the file carries clips, play and stop them in place — handy for checking rigs before importing into a pipeline.
Honest stats
Mesh count, triangle count, materials and clips, listed under the viewport. Know what you are shipping before you ship it.
Format notes
What each format is for
GLB
GLB is the binary form of glTF — a single file holding geometry, PBR materials, textures and animations. It is the default 3D format for the web, AR quick-look and most real-time engines.
glTF
glTF is the open 'JPEG of 3D' standard by the Khronos Group. The .gltf variant keeps JSON plus external .bin and texture files, which is handy when you want to inspect or hand-edit the scene description.
OBJ
Wavefront OBJ is the oldest widely-shared mesh format: positions, normals, UVs in plain text, with materials in a companion .mtl file. Nearly every 3D tool ever made can read it.
STL
STL carries triangles only — no color, no UVs, no scene. It is the lingua franca of 3D printing and CNC, where watertight geometry is all the machine needs.
PLY
PLY (Stanford polygon format) stores vertex clouds or meshes with arbitrary per-vertex properties such as color. It is common in scanning, point-cloud work and research pipelines.
FBX
FBX is Autodesk's interchange format, dominant in DCC pipelines (Maya, 3ds Max, Blender exports). It carries meshes, skeletons, animations and materials, but is proprietary and heavy.
Questions people ask
- Which 3D file formats can I view?
- Six: GLB, glTF, OBJ, STL, PLY and FBX. Each format opens in its own dedicated viewer below, all sharing the same orbit controls, studio lighting and stats readout.
- Do I need to install anything?
- No. The viewers run entirely in your browser with WebGL. Drag a file in and it renders immediately — nothing is uploaded to a server.
- Can I play animations and see materials?
- Yes, for formats that carry them: GLB, glTF and FBX preserve skeletons and clips, and their materials render with PBR lighting. STL and OBJ show geometry and normals; STL carries no color by design.
- What if I need to change the format, not just look at it?
- Use the free 3D file converter: 25 pairs across GLB, glTF, OBJ, STL and PLY, converted locally. Or shrink the file with the GLB compressor first.
Viewing is free. Making is too.
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