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View a CATPART file online, free

Open and read .CATPART files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .CATPART file here

Opens your .CATPART file right here.

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Up to 50 MB · 160+ text and code extensions
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What you get for a .CATPART file

We don't have a dedicated viewer for this format, so we identify and inspect it instead — honestly, only what can be read from the file.

01

Drop your .CATPART file

Choose it or drag it in. It's read right here in your browser.

02

We identify it

We read the magic bytes to tell what the file really is, its MIME type, and whether the name matches the contents.

03

See the details

Any metadata we can extract (dimensions, EXIF/GPS, document author and dates), a hex view, plus readable text and strings found inside.

What is a .CATPART file?

Plain text that programs, servers and people write every day.

A .CATPART file is a 3D part model created with Dassault Systemes CATIA V5 software. It contains geometric data and design structures used for computer-aided design (CAD) processes. These files can be opened and viewed using CATIA, Autodesk Inventor, or Okino PolyTrans.

Programs that open .CATPART files

Windows
CATIA, Autodesk Inventor, eDrawings Viewer, CAD Assistant (Open Cascade)
macOS
Autodesk Fusion 360, CAD Assistant (Open Cascade)
Linux
CAD Assistant (Open Cascade)
Web
Autodesk Viewer / online CATIA viewers (Glovius, ShareCAD)
.CATPART format details
Full nameCATIA V5 Part File
DeveloperDassault Systèmes
First releasedCATIA V5, 1998 (the .CATPart part document of V5; V6/3DEXPERIENCE continue it)
CategoryText & Code
MIME typeapplication/octet-stream

Related viewers

Every viewer is free to use.

Frequently asked questions

Is my .CATPART file uploaded anywhere?

No. The file is read and highlighted for you.

Why do some characters look wrong (é, ł)?

That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.

Can it handle huge log files?

Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.

How do the log level filters work?

We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.

Can I edit the file?

This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.

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