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Flyfish CAD Viewer

Free#24 of 32 in CAD Viewer Software

Flyfish CAD Viewer: A focused open-source viewer for embedding CAD previews across web environments. Ranked #24 of 32 in CAD Viewer Software by our editors (6.3/10); pricing: Open source; best for developers embedding lightweight CAD previews.

6.3/10Editor score

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Flyfish CAD Viewer6.3 Visit site

At a glance

Editor score
6.3 / 10
Pricing
Open source
Best for
Developers embedding lightweight CAD previews
Paid from
Free
Facts checked
22 Sep 2026

Where it wins
- Renders DWG, DXF, DWF, DWFx, XPS and 3D eModels in browsers
- Supports npm, plain Web, iframe, Web Worker and WebAssembly integrations
- Exports bills of materials in CSV and JSON formats
Where it doesn't
- Measurement and markup are not part of its documented feature set
- Collaboration, sharing and annotation workflows are not documented
- Its scope is focused on browser viewing rather than full CAD authoring

Our verdict on Flyfish CAD Viewer

Flyfish CAD Viewer is an open-source, browser-based viewer for organizations that need to display engineering drawings and models inside web applications. Its documented use cases include engineering archives, PLM, manufacturing, construction and after-sales systems. The viewer parses and renders DWG, DXF, DWF, DWFx and XPS files, along with 3D eModels. For developers, the product is available through an npm package, static demo, runtime assets or private integration. Its local browser file-processing approach allows drawings to be viewed without requiring upload to a backend.

Integration flexibility is a central strength. The published options include plain Web integration, iframe embedding, Web Workers, WebAssembly and desktop WebView environments. Rendering uses WebGL with a Canvas2D fallback, while Web Worker and WebAssembly runtime support can help teams fit the viewer into different browser-based architectures. External SHX reference handling addresses a practical dependency in some DWG workflows. These options make Flyfish CAD Viewer a natural fit for product teams embedding previews into PLM, manufacturing or service software rather than selecting a standalone desktop viewer.

The feature set remains focused on viewing and extracting drawing information. BOM extraction with CSV and JSON export extends the viewer beyond visual preview, but measurement, markup and annotation are not part of its documented scope. Sharing, collaboration and related review workflows are also not described as core capabilities. Choose Flyfish CAD Viewer when an open-source browser component and multiple embedding paths matter most. Teams that need detailed design review, measurement, markup or collaboration should look for a CAD viewer with those workflows as explicit features.

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

Flyfish CAD Viewer pricing

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

See plans on flyfish.group

Flyfish CAD Viewer 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	Cloud, Self-hosted, Desktop
Platforms	Web
Support	Email, Live chat, Docs
Built for	Mid-market, Enterprise (editorial estimate)
Integrations	6 integrations: npm, plain Web, iframe, Web Worker, WebAssembly, desktop WebView
Pricing	Open source (source)
Website	flyfish.group
Facts checked	22 Sep 2026

Flyfish CAD Viewer integrations

Flyfish CAD Viewer lists 6 integrations on its own site.

npm
plain Web
iframe
Web Worker
WebAssembly
desktop WebView

Alternatives to Flyfish CAD Viewer

See all Flyfish CAD Viewer 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 Flyfish CAD Viewer 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

Flyfish CAD Viewer 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

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Last updated 7 Oct 2026 · How we research and update