View online
Open CATPart in the browser to rotate, zoom and inspect.
Guide中文
How to Open a CATPart File Without CATIA
CATPart files come from CATIA V5 and normally need CATIA to open. But to simply inspect the geometry — or to reuse it elsewhere — an online viewer and format conversion are enough, no CATIA license required.
发布时间 2026/06/10最近更新 2026/06/10
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Convert to STEP
Get a neutral CAD file that any tool can read.
Convert for web/print
Export to glTF, OBJ or STL as needed.
What a CATPart file is
CATPart is the part document format of CATIA V5, storing a single component’s geometry and features.
Assemblies use CATProduct, which references multiple CATPart files.
Inspect or convert
For a quick check, view the CATPart online — no install, no license.
To use it in another pipeline, convert to STEP for CAD interchange or to glTF/OBJ/STL for web, exchange or printing.
FAQ
Can I open CATPart without CATIA?
Yes. You can view CATPart files online and convert them to neutral formats.
What about CATProduct assemblies?
CATProduct references multiple CATPart files; conversion to STEP can preserve the assembly.
Which format should I export to?
STEP for CAD, glTF for web display, STL for 3D printing.