Add your files
Drop files in the center or choose “Open files”. You can select related files together.
CORELINKS VIEWER
Open and inspect 3D files and drawings.
View supported files in your browser without CAD. Convert to a format you need.
Files are processed on your deviceNo sign-in required. Originals are never overwritten.
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HOW TO USE
Three steps to your saved file.
View and check
Drag to rotate or pan, and scroll to zoom. Choose “Fit view” to show the whole model.
Convert and save
Select an available output format and choose “Convert and view result”. Check the result on the next page, then save it.
SUPPORTED FORMATS
Files you can open. Formats you can save.
3D models
STL · OBJ · PLY · OFF · 3MF · glTF · GLB
View supported geometry and save as STL, OBJ, PLY or OFF. Supported models can also be saved as GLB or glTF.
Drawings, images and PDFs
DXF · SVG · PNG · JPEG · PDF · AI
Convert DXF to SVG, SVG to PNG, and between PNG and JPEG. Save the current page of a PDF or PDF-compatible AI file as PNG.
CAD data
STEP · STP · IGES · IGS
View supported CAD surfaces and save as STL, OBJ, PLY or OFF. Colors, materials and design information are not retained.
| Input file | Output formats | Retained information |
|---|---|---|
| STEP / IGES | STL / OBJ / PLY / OFF (geometry only) | Geometry only; curved surfaces are approximated by triangles |
| STL / OBJ / PLY / OFF | STL / OBJ / PLY / OFF | Geometry only; colors, materials and unit metadata are not retained |
| 3MF / glTF / GLB | GLB / glTF / STL / OBJ / PLY / OFF | Supported colors, materials and textures are retained in GLB/glTF |
| DXF / SVG | DXF → SVG / SVG → PNG | Supported drawing elements; PNG is a raster image |
| PDF / PDF互換AI | 表示中のページをPNG | Current page image; PDF to DXF is not supported |
| PNG / JPEG | PNG / JPEG | JPEG uses a white background; original camera metadata is not retained |
For the paid edition plans (planned) and format details, see Free / Pro comparison.
STL/OBJ/PLY/OFF: 50 MiB. STEP/IGES/3MF/glTF/GLB: 16 MiB. PDF/AI/images/other: 8 MiB. Related files: 64 MiB total, up to 16 files. Support also depends on file contents.
See formats, limits, and the Free / Pro comparison
Getting started and format guides
Learn how to open 3D files and drawings, and check conversions and limits by format.
QUESTIONS
Before you start
Are my files uploaded to a server?
Files you view or convert are processed on this device. For details, see our Privacy policy.
What if a file will not open?
Check the displayed reason and supported features. Missing OBJ or glTF companion files, size limits, or unsupported geometry or features can prevent loading. Your original files are not changed.
Is the result accurate enough for CAD use?
This tool is for viewing geometry and converting supported formats. CAD surfaces are approximated by meshes, and units, materials or structure may be lost depending on the format. Check dimensions and geometry in suitable CAD software before machining or manufacturing.