PTC Onshape
PTC Onshape is a fully browser-native CAD and PDM product founded by ex-SolidWorks leadership in 2012 and acquired by PTC in 2019 (~$470M). Unlike Inventor, SolidWorks, NX, or CATIA, Onshape has no desktop client — modeling, assembly, drawing, simulation, and PDM run as a multi-tenant web service against a unified document database with built-in branching/merging.
Context
Onshape’s model architecture treats designs as first-class versioned documents (Document → Workspace → Version) with branching, comparison, and merging closer to git than to a classical CAD vault. PTC operates Onshape as a separate brand from Creo, with its own roadmap and education program. It is increasingly chosen by hardware startups, design agencies, and academic programs for its low onboarding friction.
What it implements
- CAD 3D Design — full parametric, browser-native modeling.
- CAD 2D Drafting integrated with the model.
- CAD Assembly with mate connectors.
- PDM — built-in versioning, branching, and release management (no separate vault).
- CAD Simulation via integrated FEA.
Relationships (see sidebar)
- Competes with SolidWorks, Autodesk Inventor (and Autodesk Fusion), Siemens Solid Edge, and PTC Creo in mid-market and education-led deals.
Vendor
PTC, Inc. (acquired Onshape, 2019).
Resources
- Onshape – Cloud-Native CAD — official homepage
- Onshape Explained in 15 Minutes — official Onshape overview
- Onshape: A Modern, Cloud-Based CAD Platform — full feature deep-dive
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