Universal Document Viewer for .NET Backends

Display PDF, Office, CAD & images natively in your React, Angular, Vue, or .NET apps. A powerful backend library for .NET — no downloads required.

Doconut Viewer Interface
v25.11.0.0 Now Available

What's New

Announcing the new Doconut Converter Plugin

Doconut v25.11.0 release
Boost your document workflow with the all-new Doconut Converter Plugin — enabling fast, reliable conversions between PDF, Word, Excel, PowerPoint, Images, CAD, and Email formats in both .NET Framework and .NET Core.
  • Unified stream-based engine with simplified API examples.
  • Enhanced compatibility across DOCX, XLSX, PPTX, PDF, DWG, PNG, and EML formats.
  • Improved performance and accuracy across all modules.

Trusted Across Industries & Applications

Doconut provides essential viewing capabilities for mission-critical .NET applications, including Document Management Systems, CRMs, Customer Portals, Legal Tech, E-Learning, HR & Recruitment, Healthcare Records, Engineering Drawings (CAD), Financial Reporting, and more.

  • Document Management Systems (DMS)
  • Customer Portals
  • Legal Tech
  • E-Learning Platforms
  • HR & Recruitment
  • Healthcare Records
  • Engineering Drawings (CAD)
  • Financial Reporting

🌍 Trusted by developers in 40+ countries

Elevate Your .NET Application with Professional Document Viewing

Document Viewer Library

A robust .NET document viewer supporting PDF, Office, and CAD formats with annotations, search, and printing built in.

PDF Viewer

Smooth and high-quality rendering for PDF files in ASP.NET and .NET Core apps with full search and interaction support.

Modify PDF Online

Annotate, highlight, and make PDFs searchable right inside your web app — no external tools required.

Built for Developers

Integrate with ASP.NET, MVC, Core or Blazor quickly and deploy on Windows, Docker, Azure or AWS with ease.

⚡ .NET Server-side Conversion

Convert documents directly inside your .NET apps

Process PDF, Word, Excel, PowerPoint, and images with precision and speed using Doconut's built-in Converter Plugin.

Convert PDF, Word, Excel, PowerPoint, CAD & images on the server — no Office installed, no external services.

Streamlined API designed for ASP.NET, .NET Core & Blazor apps.

Deliver consistent exports with predictable performance and simple deployment.

Works with streams, background jobs & web APIs.

Converter Plugin Visual

A Modern Viewing Experience

Doconut combines performance, accuracy, and a modern interface. Users can view, annotate, and search documents seamlessly inside your app.

Doconut Live Demo

Empowering Teams Across the Globe

National Geographic
redoxSoftware
adver online
algoritmusistemos
andeol
profits
qualiware
workablecom
my associates
daxis
trialworks
Redcastle crm
crmcompany
MTECH
autographics
exelsys

What Our Customers Say

Doconut allowed us to show many types of documents within the web application we developed for one of our larger customers. This has increased the user friendliness and efficiency of the tool considerably. We were very satisfied with the quick responses of the Doconut support.

J

J. Meij

Sr. Manager, KPMG Advisory Netherlands

Go Beyond Viewing: Powerful Extensions

Annotation Plugin

Enable reviews with highlighting, comments, drawings & more.

Search Plugin

Find text instantly within documents, even scanned images (with OCR).

Converter Plugin

Convert PDF, Word, Excel, PowerPoint & images directly inside your .NET app.

Built for Enterprise

Controlled Printing

Manage print jobs directly from the viewer interface.

Secure & Scalable

Server-side processing keeps documents secure and scales effortlessly for enterprise workloads.