.step

What is a .step file?

An ISO standard for exchanging 3D CAD data between different software.

Safe format
Type Cad
By ISO
MIME model/step

Drop any file to identify it

We read file headers, not extensions. Nothing gets uploaded.

What is it

An ISO standard for exchanging 3D CAD data between different software. STEP (Standard for the Exchange of Product Data) preserves geometry, colour, and assembly structure. The most widely accepted 3D CAD interchange format in engineering.

Technical details
Full Name
STEP CAD File
MIME Type
model/step
Developer
ISO
Magic Bytes
N/A
Safety
.step is a known, safe format.
What opens it
FreeCAD
FREE All
Fusion 360
FREE All
SolidWorks
Subscription Windows

* Personal use

Related formats