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 the Epic Games acquisition in 2021, enterprise feature development has stalled — the platform is moving toward the Fab marketplace for creators. For B2B teams sharing industrial CAD files confidentially, Sketchfab has two hard blockers: no native STEP/IGES support, and a public-by-default model gallery.
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.
Does Sketchfab support STEP files? 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.
What is the best Sketchfab alternative for private B2B sharing? OmniView 3D: private by default, controlled share link, no public gallery, EU hosted.
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