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CADViewer by Orua

Free#25 of 32 in CAD Viewer Software

CADViewer by Orua: A private, self-hosted CAD viewer for broad format coverage without editing tools. Ranked #25 of 32 in CAD Viewer Software by our editors (6.2/10); pricing: Open source; best for self-hosted browser viewing of many CAD formats.

6.2/10Editor score

Visit Orua

CADViewer by Orua6.2 Visit Orua

At a glance

Editor score
6.2 / 10
Pricing
Open source
Best for
Self-hosted browser viewing of many CAD formats
Paid from
Free
Facts checked
22 Sep 2026

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

Our verdict on CADViewer by Orua

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.

Your product? Our editors can test CADViewer by Orua in depth and publish a review, labelled as paid · from $149/mo →

CADViewer by Orua pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on github.com

CADViewer by Orua fact sheet

Free plan	Not verified
Paid from	Free
DWG support	Yes
Measurement tools	Not verified
Markup and annotation	Not verified
Sharing and collaboration	Not verified
Platforms	Web
DXF support	Yes
Deployment	Self-hosted
Platforms	Web
Support	Docs
Built for	Solo, Small business, Mid-market (editorial estimate)
Pricing	Open source
Website	github.com
Facts checked	22 Sep 2026

Alternatives to CADViewer by Orua

See all CADViewer by Orua alternatives →

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used CADViewer by Orua for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

CADViewer by Orua is listed in our CAD Viewer Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update