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IPT to STEP Converter Online: Autodesk Inventor Parts & IAM

Convert Autodesk Inventor IPT parts and supported IAM assemblies to STEP online. Package IAM dependencies in ZIP and verify units, missing references and geometry before download.

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Capabilities and limits

  • Convert Autodesk Inventor IPT files to STEP online and process supported IAM assemblies from ZIP. Verify units, missing references and converted geometry before download.
  • IPT gives exact STEP only when its B-Rep is read completely; IAM exports mesh STEP. Native feature history is not preserved.
  • Files are uploaded for server processing; support depends on format, version and geometry.
  • Viewing and measuring do not require an account. Sign in to convert, save files across devices or create share links.
On this page

Convert an Autodesk Inventor IPT part or IAM assembly to STEP. An IPT gives an exact STEP when its B-Rep is read completely; an IAM, and any part that does not qualify, exports a mesh STEP built from the display triangles Inventor saved. View and measure without an account; sign in to convert.

What the STEP export contains

Exact STEP keeps surfaces and edges, so CAD and CAM applications can use it as solid geometry. Mesh STEP stores display triangles in a STEP file: suitable for visual review and overall size, not for machining features or surface edits. The Convert dialog offers exact STEP only when it is available for the uploaded file; STL, OBJ and GLB come from the same preview.

IPT parts

CADProps reads the IPT body in-house. When every face is rebuilt, exact STEP is offered; otherwise the export is a mesh STEP. Parts saved without display geometry show their saved thumbnail.

IAM assemblies

Upload the IAM, or a ZIP with the top-level IAM and referenced IPT and IAM files keeping relative folders. CADProps shows the components it can read and warns when references are missing. The STEP export is a mesh STEP of the loaded components; for exact assembly geometry, ask for a STEP export from Inventor.

STEP does not carry Inventor history

The translation does not reproduce Inventor sketches, constraints, parameters, iProperties or native feature history as editable source features. Keep the IPT/IAM package as the editable source.

Verify the output

Compare one known dimension, expected bodies/components, assembly placement and one or two functional features. Reopen the STEP in the receiving application where practical.

Input formats: IPT / IAM

Open this tool

General steps for uploading, viewing, sectioning, measuring, converting and exporting are explained once in How it works. This page covers what is specific to this file type.

Real CADProps screenshots

The screenshots show the English interface. Captions and instructions describe the same operations.

Convert CAD files — INV_nist_ctc_01_asme1_2021.ipt
Convert CAD files — INV_nist_ctc_01_asme1_2021.ipt

Sample source and verification

Properties — inventor-to-step.stp · 800 × 450 × 150 mm · 14,642,816.496 mm³ · 807,968.661 mm²
Properties — inventor-to-step.stp · 800 × 450 × 150 mm · 14,642,816.496 mm³ · 807,968.661 mm²

When a result needs another check

Viewing can start without an account. Conversion, account storage and share creation require signing in. Temporary files expire after the displayed retention period. Read the privacy statement for server processing and deletion, and the accuracy notes before using numerical results. Do not assume that hiding a part, clipping it or exploding an assembly changes the exported source geometry.

When a result needs another check · Input formats

Continue with a related task

Original article: CADProps · https://www.cadprops.com/tools/inventor-to-step/

A reproducible example

Convert a generated IPT block measuring 20 × 30 × 40 mm to STEP. Reopen the output and verify its extents, body count and 24,000 mm³ volume.

Repository-generated samples are synthetic test models. Verify your own model's units and geometry before using results.

Supported formats
All formats and limits →

Questions about this task

Can I convert IPT to STEP online?

Yes, after signing in. You get exact STEP when the part's B-Rep is read completely; otherwise a mesh STEP built from the saved display triangles.

Can I convert IAM to STEP online?

Yes, as a mesh STEP of the components CADProps can read. Exact assembly STEP is not available; export it from Inventor when the recipient needs solid geometry.

What if the IAM assembly has missing parts?

The result and its export are incomplete. Add the missing references before presenting the output as a complete assembly.

Does STEP preserve Inventor features?

No. STEP preserves supported neutral product geometry/data, not Inventor's original parametric feature history.

What should I check after conversion?

Verify units, one known dimension, expected bodies/components and critical geometry in the destination workflow.

Do I need an account to convert files?

View and measure without an account. Register or sign in to convert, save files and create share links. Recipients can view shared models without an account.