CADViewer by Orua review
A private, self-hosted CAD viewer for broad format coverage without editing tools.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
CADViewer by Orua is an open-source, browser-based CAD viewer for engineering drawings and 3D model files. It is aimed at teams and individuals that need to inspect CAD files through a private or static self-hosted deployment rather than edit designs or collaborate inside the viewer. The web interface supports DWG and DXF alongside STL, STEP/STP, IGES/IGS, and BREP/BRP formats, giving it a broad viewing scope across 2D drawings and 3D models.
Its strongest technical fit is local, browser-side processing. Files are handled in the browser without uploading them, which suits private-network or self-hosted environments where keeping drawings local matters. Progressive rendering is designed for large engineering drawings, while Canvas 2D and WebGL rendering provide the display layers. Core navigation includes pan, zoom, fit-to-view, and zoom-window controls, with recent-drawing history and drawing-list visibility supporting repeat viewing. Light and dark backgrounds are also available for different viewing preferences.
The trade-off is a narrow, read-only workflow. CADViewer is suitable for opening and inspecting supported files, but it is not positioned as a CAD editor or collaboration workspace. Verified measurement and markup features are absent, and there are no AI features. Organizations that need browser-based access to many CAD formats, local file processing, and self-hosted deployment should consider it; teams that require design changes, annotations, measurement, or collaborative review should choose a product built around those functions instead.
CADViewer by Orua pros and cons
- Where it wins
- Views DWG, DXF, STL, STEP/STP, IGES/IGS, and BREP/BRP files
- Processes local files in the browser without uploading them
- Progressive rendering supports large engineering drawings
- Where it doesn't
- Read-only, with no CAD editing or collaboration tools
- Verified measurement and markup features are absent
- Web-only deployment limits it to browser-based workflows
CADViewer by Orua fact sheet, pricing and score →
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