# IPT Viewer Online: Open Autodesk Inventor Parts & IAM Open Autodesk Inventor IPT files online and inspect supported IAM assemblies from ZIP. Check dimensions and converted geometry, then export validated models to STEP. Need to open an IPT file without Autodesk Inventor? Upload the part, inspect the converted geometry and dimensions, and use a ZIP for IAM assemblies with referenced components. The viewer is for inspection and neutral conversion, not native feature editing. ## Open an IPT file online Upload the Autodesk Inventor IPT part and wait for the temporary workspace to process it. Rotate the model, fit the view and check overall dimensions. Verify one known size before using calculated properties. ## Inspect IAM assemblies with their references IAM files can depend on IPT parts and nested assemblies. Preserve the relative folder structure inside a ZIP and choose the intended top-level assembly when required. Missing references produce a partial-result warning. ## Check geometry and units before using mass Volume and surface area describe the loaded converted geometry. Mass additionally depends on the density you choose. Do not assume a browser viewer has recovered the original Inventor material definition or manufacturing tolerance. ## Use STEP for a neutral downstream handoff If the recipient does not use Inventor, convert the supported model to STEP and verify the result. Keep the native IPT/IAM source when future parametric editing matters. ## Treat native-version support as a compatibility check Inventor save versions and model complexity vary. If an IPT or IAM cannot be read, keep the original unchanged and ask the sender for the source release or a fresh STEP export rather than renaming the file. ## Exact and approximate results IPT parts give exact properties and exact STEP only when their B-Rep is read completely. IAM assemblies are shown from the display geometry Inventor saved, with approximate properties, and export as mesh STEP. Files saved without display geometry show their saved thumbnail. **Input formats:** IPT / IAM [Open this tool](https://www.cadprops.com/workspace/index.md) General steps for uploading, viewing, sectioning, measuring, converting and exporting are explained once in [How it works](https://www.cadprops.com/how-it-works/index.md). 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.
Properties — INV_nist_ctc_01_asme1_2021.ipt · 800 × 450 × 150 mm · — mm³ · 806,723.984 mm² This native preview is evidence for the pictured file and version only. It does not establish universal compatibility, exact B-Rep measurements or successful STEP conversion.
Properties — INV_nist_ctc_01_asme1_2021.ipt · 800 × 450 × 150 mm · — mm³ · 806,723.984 mm² This native preview is evidence for the pictured file and version only. It does not establish universal compatibility, exact B-Rep measurements or successful STEP conversion.
[Sample source and verification](https://www.nist.gov/ctl/smart-connected-systems-division/smart-connected-manufacturing-systems-group/mbe-pmi-0) ## 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](https://www.cadprops.com/accuracy/index.md) · [Input formats](https://www.cadprops.com/supported-formats/index.md) ## Continue with a related task - [IPT to STEP Converter Online: Autodesk Inventor Parts & IAM](https://www.cadprops.com/tools/inventor-to-step/index.md) - [STEP Viewer Online: Open STP Files & Measure CAD](https://www.cadprops.com/tools/step-viewer/index.md) - [STEP File Dimensions Online: Measure X, Y, Z & Distances](https://www.cadprops.com/tools/cad-dimensions/index.md) For fast part and assembly viewing, see [Fast CAD viewing with CADProps](https://www.cadprops.com/fast-cad-viewer/index.md), with real model examples and loading times. ## Capabilities and limits - Open Autodesk Inventor IPT files online and inspect supported IAM assemblies from ZIP. Check dimensions and converted geometry, then export validated models to STEP. - Native-file compatibility depends on the saved version and geometry; missing assembly references limit results to loaded components. - 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. ## Questions about this task ### Can I open an IPT file online without Inventor? Yes, for supported Autodesk Inventor IPT files. Upload the part and inspect the converted geometry in the browser. ### Can I open an IAM assembly online? Yes, when the assembly and referenced local files are packaged in a ZIP with their relative paths preserved. ### What if my IAM assembly has missing parts? CADProps reports the incomplete scope. Properties apply only to loaded geometry until the missing files are supplied. ### Can I measure an IPT file? Yes. Check overall dimensions and supported geometry properties, then verify units with a known dimension. ### Can I convert IPT or IAM to STEP? Supported Inventor inputs can be converted to STEP. The neutral output does not preserve the original Inventor feature history. HTML page: https://www.cadprops.com/tools/inventor-viewer/