Engineers
Review mechanical, civil, electrical and manufacturing drawings without leaving the business system that owns the project.
CAD viewer and CAD converter for serious .NET applications
The CAD viewer engineers, architects and creators actually want inside your app.
Doconut helps your users view and convert CAD drawings without leaving the system where the project lives. Add DWG, DXF, DGN and engineering drawing support to your .NET application, then turn complicated files into clear browser previews, PDFs and images for review, approval and delivery.
- DWG
- CAD viewing
- DXF
- CAD review
- DGN
- CAD conversion
factory-floor-revision.dwg
CADZoom 240 percent | Layer review | PDF export ready
Built for people who create and inspect CAD files
Give every stakeholder a drawing viewer, not another installation problem.
Architects
Open floor plans, elevations, layouts and revisions in the browser so clients and project stakeholders can inspect files faster.
Design and CAD creators
Share drawing previews with non-CAD users while protecting the original source files and keeping collaboration moving.
Software teams
Embed CAD viewing and conversion into ASP.NET, .NET Core, MVC, Web Forms and Blazor products with a focused SDK.
CAD viewer plus CAD converter
One embedded experience from drawing preview to delivery file.
A CAD viewer is useful. A CAD converter is useful. Doconut becomes powerful when both fit into the same application workflow, so users can inspect a drawing, share the right version and move on without switching tools.
CAD source files
DWG, DXF, DGN and engineering drawing formats used by design teams, project owners, estimators and field reviewers.
Review outputs
Render CAD drawings as browser-ready pages and export clean previews for engineering portals, document management systems and customer apps.
Conversion targets
Convert CAD drawings to PDF and image formats so users can inspect, share, archive and approve files without opening desktop CAD software.
Why Doconut is the best CAD viewer choice for .NET teams
It respects the way engineering software is actually built.
High-confidence CAD viewing
Turn complex CAD files into an online viewer experience that feels native to your application, not bolted on from another tool.
CAD conversion built for workflows
Generate shareable PDF and image outputs for approvals, archives, tickets, quote packages and project documentation.
Complex drawings, practical UX
Make dense engineering documents easier to inspect with browser zooming, responsive viewing and fast access for distributed teams.
Keep files under your control
Process documents inside your own .NET environment and reduce the risk of sending sensitive designs through public conversion sites.
Server-side .NET integration
Doconut is built for developers who need CAD viewing inside real business apps, not a loose collection of external viewers.
Fewer handoffs
Stop asking users to install AutoCAD, download files or request screenshots. Let them view and convert drawings where the work happens.
Secure CAD viewing for business-critical drawings
Stop sending sensitive drawings to random online converters.
CAD files often include intellectual property, site plans, product geometry, manufacturing details and customer-specific designs. Doconut helps you keep the viewer and converter inside your controlled .NET application, where authentication, storage, permissions and auditing already belong.
A practical CAD workflow with Doconut
- 1Upload a CAD file from your web app, document portal, PDM, ERP, construction platform or customer dashboard.
- 2Let Doconut process the drawing on your .NET backend and prepare secure browser viewing.
- 3Give users fast zooming, page navigation, clean previews and conversion outputs from the same experience.
- 4Keep the workflow inside your application instead of forcing downloads, plugins or unmanaged desktop tools.
Developer friendly
Add CAD viewing where your users already work.
Doconut fits into .NET products that already manage documents, projects, revisions, estimates, assets, claims, inspections, work orders or customer files. Your users get a polished CAD viewer. Your team gets a focused integration path.
ASP.NET.NET CoreMVCWeb FormsBlazor
CAD workflow example
var viewer = new Viewer();
var document = viewer.Open("assembly-revision.dwg");
// Render CAD for secure browser viewing.
var pages = document.Render();
// Convert the same drawing for approvals.
var pdf = document.Export("pdf");
var preview = document.Export("png");CAD viewing and conversion
Doconut is the CAD viewer and CAD converter your users should meet first.
If your application handles drawings, plans, parts, layouts or technical revisions, CAD support should feel native. Doconut gives engineers, architects and CAD creators a fast, secure and professional way to view and convert files in the browser.
Reduce support tickets caused by unsupported CAD files.
Keep users inside your product during document review.
Make CAD files easier to share with non-CAD stakeholders.
CAD viewer and converter FAQ
What is the best CAD viewer for .NET applications?
Doconut is an excellent CAD viewer for .NET teams because it lets developers embed CAD viewing directly into web applications, including ASP.NET, .NET Core, MVC, Web Forms and Blazor projects.
Can Doconut convert CAD files?
Yes. Doconut can be used as a CAD converter for workflows that need browser previews, PDF outputs and image-based exports from CAD drawing files.
Who needs an online CAD viewer?
Engineering teams, architects, manufacturers, construction platforms, document management systems and customer portals often need an online CAD viewer so users can inspect drawings without installing desktop CAD software.
Let your users open CAD files with confidence.
Add Doconut to your .NET application and give every engineer, architect, project manager and customer a better way to view and convert CAD drawings.