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ProjectCAD viewers

CADViewer by Orua

Sheet
A-12 of 31
Drawn by
—
From
Free
Free plan
Yes
Runs on
self-hosted, Web
Rev.
6.3
Visit site Alternatives

Summary

CADViewer by Orua is ranked #12 of 31 in CAD viewers on Bettesworth Construction. It runs on Self-hosted, Web. There is a free plan.

CADViewer by Orua plans and pricing

All plans
CADViewer Free Open-source browser viewer · read-only · self-hosted static deployment github.com · 4 Oct 2026

Compared on CAD viewers

DWG support
Yesgithub.com
Platforms
webgithub.com
DXF support
Yesgithub.com

Facts

Purpose
CADViewer is an open-source browser CAD viewer designed for large engineering drawings and read-only previews.github.com · 4 Oct 2026
File formats
It opens DWG, DXF, STL, STEP/STP, IGES/IGS, and BREP/BRP through one file entry and toolbar.github.com · 4 Oct 2026
Large drawing rendering
DWG/DXF parsing runs in a Web Worker with LibreDWG WebAssembly and progressively renders entities using Canvas 2D and Path2D.github.com · 4 Oct 2026
3D previews
Three-dimensional formats are processed locally with OpenCascade WebAssembly and displayed with WebGL, with selectable metal surface-finish previews.github.com · 4 Oct 2026
Navigation
The viewer supports pan, wheel zoom, fit-to-view, zoom window, drawing-list visibility, and light or dark backgrounds.github.com · 4 Oct 2026
Fonts and languages
It defers SHX, TTF, OTF, and WOFF font loading and supports Simplified Chinese and English through deployment configuration.github.com · 4 Oct 2026
Deployment
CADViewer can be deployed on a static web server without an application server or database, and it documents offline or private-network configuration.github.com · 4 Oct 2026
Privacy
Locally selected files are parsed in the browser, and the viewer does not require an account, application backend, or drawing-upload API.github.com · 4 Oct 2026
Security caveat
The project notes that a hosting site may retain ordinary web-server access logs.github.com · 4 Oct 2026
Read-only limits
It does not provide CAD editing, entity-property panels, selection workflows, or a plugin system.github.com · 4 Oct 2026
File fidelity limits
External raster images, proxy objects, and uncommon custom entities may not render, while missing fonts can change text appearance.github.com · 4 Oct 2026
Capacity limits
The project says supported drawing size depends on the drawing, browser, device memory, entity complexity, nested blocks, hatches, and fonts.github.com · 4 Oct 2026
Licensing
The repository says LibreDWG WebAssembly components are distributed under GPL-3.0-or-later and other components retain their respective licenses.github.com · 4 Oct 2026
Intended audience
The project is aimed at users who need to preview large AutoCAD drawings in a browser, including through self-hosted deployment.github.com · 4 Oct 2026

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Where it ranks on Bettesworth Construction

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Sources