Sketchfab doesn't support native CAD formats and publishes models publicly by default. Here are the best alternatives for B2B teams sharing STEP files.
Sketchfab is the reference platform for 3D artists and game studios. Since Epic Games acquired it in 2021, its focus has shifted toward creators and the Fab marketplace rather than enterprise CAD workflows. For B2B teams sharing industrial CAD files confidentially, that leaves two hard blockers: no native STEP/IGES support, and a public-by-default model gallery. The choice matters because these files feed a global 3D CAD software market valued at USD 10.38 billion in 2022 and projected to reach USD 17.34 billion by 2030, engineering, not consumer 3D. Below are six alternatives, matched to the job they actually do best.
OmniView 3D imports STEP, IGES, GLB, FBX, OBJ natively. Models are private by default, you control who sees what. EU hosted, GDPR-compliant, free plan available.
Autodesk Viewer supports DWG, RVT, STEP. Good for teams in the Autodesk ecosystem. US hosting, occasional login prompts.
3DViewerOnline offers private models on paid plans ($15/month). Supports STEP, IGES, STL. More functional than visual.
Vectary is better than Sketchfab for product designers creating 3D scenes. Note: STEP files are converted to mesh, not suitable for engineering precision workflows.
Emersya provides high-quality 3D visualization for luxury and industrial e-commerce. Better than Sketchfab for brand-focused presentations. Enterprise pricing.
VNTANA automates 3D asset optimization and viewer deployment for retail brands. Mid-market alternative between OmniView 3D and Threekit. For consumer-facing product pages the payoff is measurable: Shopify's own data shows pages with 3D or AR content convert up to 94% better than pages with static images alone, which is why brand and retail teams look past Sketchfab's gallery model for something embeddable and on-brand.
| Tool | Native CAD (STEP/IGES) | Private by default | Shareable link | Website embed | Best for |
|---|---|---|---|---|---|
| OmniView 3D | Yes | Yes | Yes, revocable | Yes (iFrame) | B2B teams sharing CAD privately |
| Autodesk Viewer | STEP only | Account-gated | Yes | Limited | Autodesk-format files |
| 3DViewerOnline | Yes | Paid plans | Yes | Yes | Budget functional viewing |
| Vectary | Mesh only | Yes | Yes | Yes | Product designers, 3D scenes |
| Emersya | Mesh only | Yes | Yes | Yes | Premium e-commerce visuals |
| Sketchfab | No | Paid plans | Yes | Yes | 3D artists, game assets |
If your files come straight from a CAD tool, the fastest path is the neutral STEP export: open a free STEP file directly, or handle a CATIA or SolidWorks model the same way. Comparing other tools too? See our take on 3dviewer.net and Fusion 360 sharing.
No. Sketchfab does not support industrial CAD formats (STEP, IGES, SolidWorks, CATIA). OmniView 3D imports STEP and IGES natively; SolidWorks and CATIA open via a prior STEP export, which every recent version of those tools produces.
OmniView 3D: models are private by default with no public gallery, you share through a controlled link that stays revocable, and files are hosted in the EU (AWS eu-west-1) in line with the GDPR.
Sketchfab has a free tier, but it publishes models publicly by default and private models require a paid plan. For confidential B2B CAD sharing, a private-by-default tool such as OmniView 3D fits the workflow better, with a free Starter plan and no public gallery.
Since Epic Games acquired Sketchfab in 2021, the roadmap has centred on creators and the Fab marketplace rather than engineering use cases. Teams that need native CAD import, private-by-default sharing and website embedding increasingly pick a purpose-built B2B viewer instead.
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