Render complex 3D CAD assemblies directly in your browser or Android phone. Powered by Open CASCADE WebAssembly. Zero cloud uploads — your engineering IP never leaves your device.
OCCT WASM Engine Ready
Compare PDF & 3D Enterprise Tools with standard cloud CAD viewers like Autodesk Viewer and GrabCAD.
| Capability | PDF & 3D Tools (Our Engine) | Autodesk Viewer / GrabCAD | eDrawings Mobile |
|---|---|---|---|
| Data Privacy & NDA | 100% Local (Zero Server Upload) | Uploaded & Stored on 3rd-Party Cloud | Local file, but proprietary vendor lock-in |
| Processing Engine | Client-Side Open CASCADE WebAssembly | Remote Server Farm Rendering | Native C++ Engine |
| Offline Operation | Fully Offline (No Internet Needed) | Requires Constant Internet Connection | Offline after purchase |
| Account / Sign-Up | No Account Required (Instant) | Mandatory Account & Email Verification | App Store Purchase Required |
| Price & Limits | 100% Free & Unlimited File Size | Free tier with storage/session quotas | Paid / In-App Purchases |
View solid models, polygonal meshes, and 2D engineering drawings without installing heavy desktop CAD software.
Full support for ISO 10303-21 standard protocols AP203, AP214, and AP242 with complete B-Rep solid boundary reconstruction.
Smooth surface and wireframe NURBS curve evaluation for legacy automotive and aerospace engineering datasets.
High-polygon binary and ASCII mesh visualization with face normal checking, wall thickness analysis, and volume calculation.
PBR (Physically-Based Rendering) materials, metallic/roughness reflection simulation, and vertex color visualization.
Switch seamlessly between 3D CAD models and 2D engineering drawing PDFs or spec sheets inside a single workspace.
Completely compatible with secure enterprise intranets and military-grade air-gapped workstations where internet access is prohibited.
Orchestrate full 3D interaction using your mouse or touchscreen gestures:
Rotate around any origin, pan with two-finger swipe, and zoom into intricate sub-assemblies.
Toggle surface tessellation, examine hidden edges, and inspect underlying polygon mesh densities.
Adjust metallic reflections, specular roughness, and ambient occlusion for photo-realistic component inspection.
Clear answers to common questions about opening, viewing, and protecting 3D CAD models.
You can open STEP files privately by using our Web or Android STEP Viewer. The viewer runs Open CASCADE Technology (OCCT) compiled directly into WebAssembly inside your browser or device memory. The 3D file never leaves your computer or phone.
Yes. Our engine reconstructs assembly hierarchy trees, allowing you to inspect individual parts, toggle visibility, switch between wireframe, shaded, and point cloud rendering, and analyze part geometry with hardware-accelerated WebGL.
Yes, it is 100% free with no file size limitations, no subscription fees, and no sign-up required. Your proprietary intellectual property and CAD models remain strictly local.
Yes. You can install the 'PDF and 3D Enterprise Tool' directly from Google Play Store or use the PWA offline web version. It functions completely without an active internet connection.