3D file converter
Convert STL, OBJ, STEP, GLB and more between formats, then rotate and scale right in your browser.
Mesh formats
CAD formats
Export to
Convert between formats
STL, OBJ, GLB, GLTF, PLY, USDZ and CAD inputs
Rotate, scale, and reposition
A printer-style gizmo plus numeric controls
Private by default
All conversion happens in your browser, nothing is uploaded
Drag a file here or choose one
Max file size: 500MB
A practical guide to 3D file converter
3D Converter imports supported model geometry, lets you adjust scale, rotation, centering, and floor placement, then exports another format. Feature support differs between source and target containers.
Example: prepare a model for a web viewer
Import the asset, correct its up axis and units, center it on the grid, export GLB, and compare materials plus dimensions.
Task-specific steps
- 1
Load the model with required companion assets and inspect its geometry, orientation, units, materials, and bounds.
- 2
Apply deliberate scale, rotation, centering, or floor transforms while watching numeric model details.
- 3
Choose the target format, export, and reopen the converted file to verify geometry, size, hierarchy, and appearance.
Options that affect the result
- Uniform scale and axis rotations correct unit and orientation differences before export.
- Center and drop-to-floor actions prepare predictable placement in downstream scenes.
Limitations to know first
- Conversion can omit unsupported animation, rigging, CAD precision, material extensions, hierarchy, or texture features.
- Transforming a mesh does not repair nonmanifold geometry, bad normals, missing UVs, or broken source data.
Questions specific to this task
Which 3D format is best for the web?
GLB or glTF is widely suited to web delivery because it can package efficient geometry, materials, and textures.
Why did the converted model change size?
Source formats may omit or interpret units differently. Verify dimensions and apply a deliberate scale before export.