5 Alternatives to Onshape for Private 3D Model Sharing

Onshape's free plan makes all your documents public. Here are 5 alternatives to share 3D files privately without paying $1,500/user/year.

Onshape is an excellent cloud CAD tool. But there's a critical caveat on the free plan: all your documents are public and visible to every Onshape user worldwide. The paid plans that guarantee confidentiality start at $1,500/user/year. If your need is simply to share 3D models privately, there are far more affordable options.

1. OmniView 3D — private by default, free plan

OmniView 3D is private by default. Your models are never made public without your explicit action. Share via controlled links, revoke access anytime. Free Starter plan, EU hosting.

2. 3DViewerOnline — private from $15/month

3DViewerOnline allows private models on paid plans. Much cheaper than Onshape for viewer-only use.

3. Autodesk Viewer — link-based sharing

Autodesk Viewer generates shareable links that don't require an Autodesk account. US hosting. Free.

4. Fusion 360 — private sharing with authentication

Fusion 360 offers private review links with access control. ~$545/year — less than Onshape Professional if you already need a CAD tool.

5. SharePoint + CAD Viewer add-on

If your organization uses Microsoft 365, SharePoint can host STEP files with a third-party 3D viewer add-on. Full permission control, but complex to deploy.

FAQ

Does Onshape's free plan really expose my designs publicly? Yes. On the Onshape free plan, all documents are public and can be viewed, copied, and used by any Onshape user. For commercial work, use a paid plan or a private-by-default alternative.