STP Converter
The neutral CAD exchange format every mechanical tool reads. Convert STP files into other formats, or write STP files from any supported input, all inside your browser.
- Private by designFiles stay on your device.
- No queueConversion starts instantly.
- No sign upNo account, no limits per day.
What is STP?
STEP (ISO 10303, usually AP203 or AP214) describes precise boundary representation solids, which is why it moves parts between SolidWorks, CATIA, Inventor and Onshape without losing accuracy. Files are plain text and can be inspected in any editor.
Typical uses
- CAD data exchange
- Manufacturing handoff
- Long term archival of parts
Supported by
- SolidWorks
- CATIA
- Inventor
- Onshape
- FreeCAD
- Fusion 360
Format details
- Extensions
- .stp, .step
- Full name
- STEP - ISO 10303
- Category
- CAD / solid modelling
- Encoding
- Plain text
- MIME type
- model/step
- Direction
- read and write
Questions
What is a .stp file?
STEP (ISO 10303, usually AP203 or AP214) describes precise boundary representation solids, which is why it moves parts between SolidWorks, CATIA, Inventor and Onshape without losing accuracy. Files are plain text and can be inspected in any editor.
Which applications use STP?
SolidWorks, CATIA, Inventor, Onshape, FreeCAD, Fusion 360 all work with .stp files.
Are there limits with STP?
Reading STEP is exact: the B-rep surfaces are tessellated for preview only.