How to use STEP / STP / IGES Viewer: a practical step-by-step guide
Learn the supported input, the workflow, and how to review results with STEP / STP / IGES Viewer.
When this tool is useful
STEP and IGES are widely used to exchange mechanical and manufacturing models. OpenCascade WebAssembly triangulates the B-Rep locally for interactive viewing.
Use it for a quick inspection, extraction, counting, or organization task. For formal delivery or engineering review, keep the original file and verify the result in the professional application used by your team.
Steps
- Choose a STEP, STP, IGES, IGS, or BREP file.
- Wait for local geometry parsing and triangulation.
- Orbit, zoom, and inspect dimensions and mesh statistics.
Review the result
- Confirm that the input or file type is what you expected.
- Compare important headings, text, tables, layers, fields, or counting definitions with the source.
- Check for sensitive content before sharing the output.
- Use the “Open tool” link below when you need to run the workflow again.
Support and limitations
Large assemblies can use substantial browser memory Preview only; verify manufacturing dimensions in professional CAD software
Common questions
What if the result is empty or unexpected?
Check that the input is not encrypted, damaged, or over the size limit shown by the tool. Try a smaller, simpler sample to separate a content issue from a browser issue.
Is my content uploaded?
The tool page describes local browser processing. Use a trusted device and remove downloaded files when working on a shared computer.