Microsoft's 3D Viewer has been officially discontinued: the app stopped being developed, no longer shipped by default with Windows 11 and was removed from the Microsoft Store in July 2026. In practice, anyone who receives a 3D file — a product GLB, a part in OBJ, a character in FBX — lost the simple way to open it on Windows. This article explains what happened, what the alternatives are, and presents the solution we built: a free 3D Viewer for Windows APP.
What happened to Windows 3D Viewer?
3D Viewer was born in the era when Microsoft was betting on Paint 3D and 3D creation for everyone. As the strategy changed, those apps were abandoned: Paint 3D retired first, and 3D Viewer followed the same path — no more updates, out of the default installation and, finally, out of the store. Existing installations still work, but anyone who switches computers or reinstalls Windows can no longer download it through the official channel.
The problem is that the need didn't go away — quite the opposite. 3D models are increasingly common: e-commerce, augmented reality, 3D printing, architecture, education and games. Receiving a 3D file and not even being able to look inside became a frequent frustration.
The alternatives (and their problem)
Without the native viewer, the usual ways out are: installing professional modeling software like Blender — free, but heavy and far too complex for someone who just wants to look; using online viewers — which require uploading the file to a third-party server, a problem for confidential client projects; or giving up and asking the sender for screenshots.
None of those solves the most common case: double-click and see the model, with textures and animations, without learning a new tool and without sending the file to the cloud.
The free solution: 3D Viewer for Windows APP
That's the gap we built the 3D Viewer for Windows APP to fill — a free, lightweight, straight-to-the-point application, offered as a gift to the 3D community. What it does:
- Opens full GLB: textures, PBR materials, skeletons and animations — the standard format of the 3D web and augmented reality.
- Opens OBJ with MTL and the textures from the same folder.
- Opens FBX with automatic conversion — nothing else to install.
- Controls animations: play, pause and switch between the model's movements.
- Light and dark theme, and an interface in 4 languages (Portuguese, Spanish, French and English).
- Runs locally: the model never leaves your computer — important for prototypes and client files.
Installation takes two clicks (and there's a portable version, no install). If Windows shows the "protected your PC" warning, that's normal behavior for new apps without a digital signature: click "More info" and then "Run anyway" — the full step-by-step is on the download page.
Which format should you ask for when someone sends you a model?
If you can choose, ask for GLB: it bundles geometry, textures and animations into a single file, which eliminates the classic "white model" problem (when textures get lost along the way). OBJ is great for static objects, but travels together with the MTL and the images — everything must stay in the same folder. FBX is common in game and animation production; the viewer converts it automatically.
Frequently asked questions
Is it really free? What's the catch? None. It's a gift from Agência Primeira Página, no sign-up and no ads — we specialize in 3D models and augmented reality, and the tool is our way of helping (and introducing ourselves to) people who work with 3D.
Does it work on Windows 10 and 11? Yes, the package includes everything the app needs.
What if I just want to view a 3D model without downloading anything? You can do that too: our WebAR gallery shows 3D models right in the browser — and on your phone you can place the models in your space with augmented reality, no app to install.
Does it open STL for 3D printing? In this version, the formats are GLB, OBJ/MTL and FBX. More formats may come in future versions.
Download and try it now
If the end of Microsoft's 3D Viewer left you stranded, the replacement is ready: visit the 3D Viewer for Windows APP page, download it for free and open your first model in under a minute. And if your company needs custom 3D models, augmented-reality catalogs or interactive experiences — that's exactly what we do every day.