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.

Add your files

Drop files in the center or choose “Open files”. You can select related files together.

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.

Free edition input and output formats
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.