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Convert WinForms to Blazor C#

Modernize your C# WinForms application by migrating to Blazor for a scalable, web-based future with .NET.

Desktop to Blazor: The Evolution Your WinForms and C# Apps Need

If you've built applications using C#, you've already harnessed the power and flexibility of the language. But the digital landscape is shifting. Users now demand web-based access to applications, from any device, anywhere. It's time to bring your desktop C# applications into the modern era with Blazor. 

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Blazor: Web Apps, Reimagined

Blazor is a revolutionary framework that makes it seamless for C# and .NET developers to create interactive web applications. Here's why Blazor is so beneficial:
 
  • Familiar C# Environment: Leverage your existing C# skills and knowledge. No need to learn JavaScript.
  • Full .NET Integration: Tap into the vast ecosystem of .NET libraries and tools you already know and love.
  • Interactive Web UIs: Create dynamic, responsive user interfaces that rival the best JavaScript frameworks,
  • Performance and Scalability: Blazor delivers high-performance web apps that scale to meet your needs.
  • Component-Based Architecture: Build modular, reusable components for easier maintenance and future development. 

 

 

 
 
 
 

[Webinar]

Modernizing Legacy Apps with AI: The Smarter, Faster Way to Azure

Modernizing legacy apps goes beyond just tech upgrades, it’s a business enabler. In this session, Microsoft’s Jeff Fritz joins GAP engineers to explore how our Blazor AI Migrator, powered by deterministic and generative AI, helps teams move mission-critical desktop applications to the Azure cloud with AI, including a demo that showcases real time modernization fast, reliably, and with real business impact.

👈 Watch the full webinar to learn how real customers are modernizing legacy systems in months, not years.

 

Our Blazor AI Migrator helps engineering teams move desktop applications into modern, cloud-native Blazor apps. Using a hybrid AI approach, we combine deterministic code transformation with generative enhancements to deliver clean, maintainable .NET code ready for Azure.

  • Supports large, complex apps with high accuracy

  • Preserves business logic while modernizing architecture and UI

  • Integrates with Azure services like Entra ID, App Services, and Azure SQL

  • Output is production-ready, maintainable, and extensible

  • Supports the latest versions of .NET (currently up to .NET 10)

 

Check out the side by side demo of a WinForms app converted to Blazor with our tool:

 

 

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Download our assessment tool to start your migration and get insights into your legacy code base.

Our Free Code Assessment Tool provides a comprehensive analysis of your existing WinForms codebase, giving you valuable insights before starting your migration journey. It scans your application to accurately count effective lines of code, identify dependencies, and assess the technologies in use. With detailed reports, you'll gain a clearer understanding of your application's structure, making it easier to plan a smoother, more efficient migration.

FREE CODE ANALYSIS TOOL​

 

 

What Does the Migration Process Look Like?

  1. Assessment & Blueprint – This is the pre-work we complete to analyze your WinForms application, identifying dependencies and complexity to tailor the best migration approach. The Migration Blueprint is a deep dive into developing a plan and best approach to the migration.

  2. Automated Code Conversion – This is where Blazor AI Migrator comes in. The tool converts the code and transforms the UI into a responsive, dynamic Blazor app using C# with your ASP.NET Core backend.

  3. Testing & Optimization – Rigorous testing ensures functionality, while performance enhancements optimize speed and usability.

  4. Deployment & Support – We assist in launching your modern web app, ensuring a smooth transition and ongoing support as needed.

This structured approach delivers a seamless migration with minimal disruption, unlocking the power of Blazor for your business.

 

 

 

 

Migration Methodology

 

Frequently Asked Questions

Automation cuts risk and time

Our AI Migrator tools cut project workload by 4X. Tamper-free business logic migration reduces overall defect risk. Optional fixed-price projects eliminate financial risk.

What Changes Can You Expect?

  • Project Structure: Shift from a desktop project structure to a Blazor web application structure.
  • UI Adaptation: Desktop UI elements will be transformed into their Blazor web counterparts.
  • Event Handling: Modify event handling mechanisms for the web environment.
  • Deployment: Learn to deploy your new Blazor apps to web servers 

Built on familiar standards to a modern web app

Code you’ll understand, built with C#, HTML, ASP.NET Core, and more. No magic runtimes, no long-term costs like with virtualization. You get new code you can use.

Blazor Architecture

 

Ready to Get Started?

Got legacy desktop apps?

VELO Agentic AI

Learn about how we combine Agentic AI with Deterministic AI to provide the best modernization solutions for legacy applications
Learn More →

ByteInsight Free Code Analysis

To get started with your migration, complete a free code analysis that gives insight into what needs to be modernized and how
Learn More →

Documentation

Looking for technical documentation? Review our technical specs with our latest product documentation.
Learn More →

Github Demos

Want a deeper look into modernized code? Try out some of our product demos yourself and check out our modernized code output
Learn More →

Case Studies

Real stories about how modernizing with GAPVelocity AI unlocked limitless business value for our customers
Learn More →

AI Readiness Calculator

How ready is your business for implementing AI? Get real distilled insights into your next steps to go from legacy to AI ready.
Learn More →

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A migration that we did ourselves would have taken best case scenario eighteen months, if not two years. And would have presented a much more difficult migration path for our customers. Within three months of having our source code GAP had more or less an application in the browser.

- Dan Bonelli, HST Pathways

We were able to migrate our VB6 code to .NET using the VB6 AI Migrator license we acquired through MSDN. After the migration only a few things needed manual modification. So your software did a great job and saved us a lot of time

- JMarco Botermans, Owner - Fluke

Knowing what we really know today, I think that manual migration would be impossible.

- Jarno van Hurne, Global Product Line Director, Exact

Growth Acceleration Partners seemed the only one that sorted out the details, not only the basic issues of a migration engagement. Its product, the VB6 AI Migrator, included unique, powerful features, many of which turned out to be very valuable for this specific project, like ADO to ADO.NET conversion and error handling transformation

- Rod Coles – President, Bold Technologies, Ltd

We ran a proof of concept comparing the VB6 AI Migrator with other VB6 migration tools and we definitely preferred the way VB6 AI Migrator handled the conversion.

- James Lewis Stevenson II – Software Design Engineer, GT Software

Your Code. New. Again.

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