Tech riderRev. 4 Oct 2026
CADViewer by Orua
- 1Runs onself-hosted, Web
- 2CostsFree plan
- 3DWG supportYes
- 4Platformsweb
- 5DXF supportYes
5 lines stated Written from the maker's own pages: github.com

Overview
CADViewer by Orua is ranked #13 of 31 in CAD viewer software on Specifiction. It runs on Self-hosted, Web. There is a free plan.
CADViewer by Orua plans and pricing
All plansCADViewer Free Open-source browser viewer · read-only · self-hosted static deployment github.com · 4 Oct 2026
Compared on CAD viewer software
- 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
Best CADViewer by Orua alternatives
See all 20 All accessCh 01 CAD Reader Free planFree trialAndroid Free to start7.8 All accessCh 02 CAD Pockets Free planFree trialAndroid Free to start7.7 All accessCh 03 CADViewer Free trialAndroidAPI from $203.67/mo7.6 All accessCh 04 Glovius Free trialAndroidiOS from $24.92/mo7.6 All accessCh 05 ODA File Converter Free planAndroidLinux Free to start7.5 All accessCh 06 3D-Tool Free planFree trialWindows Free to start7.4
Where it ranks on Specifiction
- Best CAD Viewer Software in 2026#13 of 31
Is CADViewer by Orua yours?
Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.
Sources
- github.com/Orua/CADViewer· checked 4 Oct 2026

