Free Online Autodesk Inventor Viewer (No Signup)
Also opens DWG, DXF, STEP, IGES, IFC, SKP, STL, OBJ, GLB, FBX, 3DM and other 3D/CAD files. Drop any file on the viewer.
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What Is an Autodesk Inventor File?
Autodesk Inventor is a mechanical design program. Each part is saved as an .ipt file and each assembly as an .iam file that places those parts. Both keep the exact solid model for Inventor’s own use, and both keep the triangles Inventor draws on screen: a part stores the tessellation of every face of its bodies, and an assembly stores a display cache of the whole assembly with every occurrence placed.
The viewer reads those triangles in your browser. A part opens with each body in the colour Inventor gave it; an assembly opens from its display cache, so every part appears where the assembly puts it without the part files being uploaded beside it. Work planes and sketches are left out. The model opens in centimetres, Inventor’s own unit, and Z-up documents are stood upright by comparing the model with the thumbnail Inventor saved.
A part with no bodies (a sketch-only part or an empty template) and an assembly saved without its display cache open to a notice that shows the document’s thumbnail; the notice names the part files such an assembly places, and each of them opens here on its own. A model that opens exports like any 3D model, for example to STL, STEP, GLB or OBJ.
Who Uses Autodesk Inventor Files?
Machine designers, product engineers, robotics teams, students and fabrication shops design in Inventor and share .ipt and .iam files by email, in project repositories and with suppliers. The person receiving one often has no Inventor seat, works on a Mac or a phone, or only needs a quick look; this page shows the part or assembly in any browser, with no sign-in and nothing to install.
Common Use Cases
- Look at an Inventor part or assembly someone sent without installing Inventor or Inventor View
- Check a design on a Mac, a tablet or a phone
- Measure a distance or cut a section through a part
- Convert an Inventor part to STL for 3D printing
- Convert a part or an assembly to GLB, OBJ or STEP for another program
- Save the view as a PDF or PNG for a review or a quote
Features
Opens Inventor Parts and Assemblies
.ipt parts and .iam assemblies from Inventor 2013 to 2026, loose or inside a .zip.
Assemblies Without Their Parts
An assembly opens from the display cache Inventor saves in it, with every part in place, so the part files are not needed.
Body Colours
Every body is drawn in the colour Inventor gave it, and every part of an assembly in its own colour.
Work Features Left Out
Origin and work planes, axes and sketches are not drawn, so the model shows what Inventor shades.
Upright and to Scale
Models open in centimetres, Inventor’s own unit, and Z-up documents are stood upright.
Thumbnail When It Cannot Draw
A part with no bodies or an assembly saved without its display cache shows its own thumbnail and says why.
Measure and Section
Click two points to measure a distance, or cut the model with a section plane.
Convert to STL, STEP or GLB
Save the model as STL for printing, STEP, GLB, OBJ, 3MF, USDZ, DXF or DWG, or the view as PDF or PNG.
Nothing Is Uploaded
The file is read and drawn entirely in your browser. No account, no upload, no copy of your design on a server.
Share and Embed
Send a link that opens the model in any browser, or drop the viewer into your own page with one iframe.
Compatibility & Format Notes
What is drawn: every face of every solid and surface body as Inventor tessellated it for display, in the body’s colour (documents saved by Inventor 2026 keep their appearance colours in a part of the file this viewer does not read yet, so they open in a neutral grey), and in an assembly every occurrence at its saved position. Units are centimetres. Documents saved by Inventor 2013 through 2026 have been checked.
Files: .ipt parts, including sheet metal, and .iam assemblies, loose or inside a .zip. The file is recognised by its content, so a renamed file still opens. An assembly opens from its own display cache; its part files are not needed.
Not drawn: work planes, axes and points, sketches, the model browser tree, parameters and iProperties, textures, and drawings (.idw) and presentations (.ipn). A part with no bodies and an assembly saved without its display cache open to a notice with the document’s thumbnail.
Embed on Your Website
Add this viewer to your own site with a single line of HTML. Click Embed in the toolbar to generate an embed code, or use the snippet below with your own file URL.
Your Files Stay on Your Computer
Your Autodesk Inventor files are parsed entirely in your browser. Nothing is uploaded, stored, or shared unless you explicitly click the Share button. Shared files are hosted for 90 days then deleted.
Frequently Asked Questions
▶Do I need Inventor or Inventor View installed?
No. The viewer reads the file with its own reader, in your browser. Nothing from Autodesk needs to be installed, and no account is needed.
▶Do I need to upload the part files of an assembly?
No. An .iam file keeps a display cache of the whole assembly, and the viewer draws the assembly from it. An assembly saved without that cache opens to a notice that names the part files it places; each of them opens here on its own.
▶Why is my part grey?
Parts saved by Inventor 2013 to 2025 open in the colour of their bodies. Inventor 2026 keeps appearance colours in a part of the file the viewer does not read yet, so those parts open in a neutral grey. Assemblies open in their parts’ colours from every release.
▶Is the geometry exact?
It is the tessellation Inventor itself draws, saved into the file with the document. It is right for viewing, measuring, 3D printing and review; for design changes, work from the Inventor model or a STEP export.
▶Is this Inventor viewer really free?
Yes, completely free. No signup, no watermarks, no file size limits on the viewer (the optional share-link feature has a 100 MB upload cap). Built by Innerscene as a tool for architects, engineers, and designers.
▶Are my files uploaded to a server?
No. All parsing, rendering, and conversion runs in your browser — nothing is uploaded, stored, or transmitted by default. The Share button is the only feature that uploads a file, and only when you explicitly click it.
▶Can I convert to another format?
Yes. Click Export in the toolbar. The menu offers GLB, OBJ, STL, USDZ, 3MF, PLY, STEP (a faceted solid), DXF, DWG (converted on our server), PDF, SVG, PNG and JPG.
▶Can I embed this viewer on my own site?
Yes. Click Embed in the toolbar to generate a one-line <iframe> snippet you can paste into any HTML page. You can choose whether the embed shows the viewer’s toolbar.
Autodesk and Inventor are trademarks of Autodesk, Inc.; Innerscene is not affiliated with Autodesk.