Abp Framework Development Team for a medical technology company in Taiwan
How Facile Technolab helped Medical Device CTO Reduced Diagnostic Errors by 25% with Custom SaaS on Blazor & Azure.
Read Full Case StudyFacile Technolab supports businesses running VB.NET applications whether that means keeping a legacy system stable and secure, adding new features to it, or migrating it to C# and ASP.NET Core. Most of our VB.NET work today is modernization: helping companies move off ageing VB.NET codebases without losing the business logic that took years to build correctly.




VB.NET is a stable, supported language but it's no longer where Microsoft's investment or the wider .NET ecosystem is heading. If you're running VB.NET today, you're likely in one of three situations. We work with all three.
Your VB.NET application works and does its job it just needs to keep running securely. We provide maintenance for existing VB.NET systems: bug fixes, security patches, small feature additions, and keeping the application compatible as the underlying .NET Framework and Windows Server versions are updated.
This is the right option if:
This is the most common request we get for VB.NET. The application's logic is sound, but the codebase needs to move to C# usually because hiring VB.NET developers is getting harder, or because C# unlocks access to newer libraries, tools, and frameworks that VB.NET projects can't use as easily.
Our migration approach:
For applications that also need architectural modernization moving from Web Forms or WinForms to a web-based ASP.NET Core application, adding cloud deployment, or restructuring a monolith we combine the VB.NET-to-C# conversion with broader modernization. This is a larger project but addresses the underlying issue: an application that's hard to maintain not just because of language, but because of its architecture.
This typically includes:
We're direct with clients about this: VB.NET isn't going away overnight, and an application that works doesn't need to be replaced just because it's old. But there are specific signs that modernization is worth prioritizing rather than deferring again.
C# and VB.NET compile to the same intermediate language and run on the same .NET runtime — the difference is syntax, not capability. But in practice, C# has become the default language for new .NET development. Most current tutorials, libraries, Stack Overflow answers, and AI coding tools are written with C# as the primary example. Moving to C# means your codebase benefits from a much larger pool of current resources, documentation, and available developers — without changing the underlying platform you're already running on.
We work with the current, supported versions of the .NET ecosystem. Here's what a typical Facile Technolab ASP.NET Core project looks like under the hood:
CloudMicrosoft Azure (primary), AWS
| Source language: | VB.NET (.NET Framework 4.x, legacy VB6 where applicable) |
|---|---|
| Target language: | C# 12 (.NET 8) |
| Conversion tools: | Custom conversion tooling + manual review (we do not rely solely on automated converters) |
| UI migration: | Web Forms / WinForms → ASP.NET Core MVC, Blazor, Razor Pages |
| Data layer: | ADO.NET → Entity Framework Core / Dapper Testing: Side-by-side regression testing, xUnit/NUnit for converted logic |
Once a VB.NET application has been migrated to ASP.NET Core, it's often a good opportunity to also modernize the frontend — moving from Web Forms or WinForms to a React, Angular, or Vue.js interface served by the new ASP.NET Core backend. This isn't a requirement of migration, but many clients choose to do both together since the backend work already touches the application's structure.
VB.NET Development Solutions are designed through methods of developing scalable web applications that meet the constantly changing business needs from legacy application modernization to the integration of cloud with third-party tools and services. You can expect high-grade security, cross-platform, and optimized performance. Develop your software at warp speed with the simplified and easy-to-use syntax of VB.NET.
We are indeed specialized developers in creating applications of VB.NET suited precisely to what your business needs, from the development of custom user interfaces to the linkage of back-end systems.
Build scalable enterprise applications that support business operations, flows of work, and security of data using VB.NET.
Our team is really strong in analytics cloud integration, thus enabling your VB.NET applications to extend their capabilities by leveraging cloud storage, compute resources, and analytics tools toward real-time insights.
We use VB.NET in building efficient APIs that permit smooth communication among different platforms, services, and applications while integrating your system with other tools seamlessly.
If you have legacy systems based on old technologies, we can help get them into newer VB.NET platforms to improve their function, security, and scalability.
We deploy your VB.NET applications together with additional support and maintenance services for proper functionality, fast resolution of bugs, and upgrades if needed.


Experienced VB.NET Developers:
Our team is highly competent and consists of experienced VB.NET developers who have developed very powerful and scalable applications for businesses of all sizes for several years.
Agile Development Process:
Alliance applies agile methodologies; our projects are delivered timely. Agile methodologies will allow easy flexibility in case of changes and in initial development, the actual final product will meet business objectives.
End-to-End Development Services:
From initial consultancy and systems design to deployment as well as subsequent support, we offer end-to-end VB.NET development services meeting specific business needs.
Focus on Quality and Security:
We prioritize high-quality development practices to ensure that your VB.NET applications are secure, reliable, and perform at their best.
Cloud Integration Expertise:
With our experience in cloud integration, we can seamlessly connect your VB.NET applications to cloud platforms, enabling you to harness the full potential of cloud computing and analytics.
Requirement Analysis:
We begin by understanding your business objectives and specific technical requirements, creating a blueprint for your VB.NET application development.
System Design and Architecture:
We design scalable, secure, and efficient system architectures that support your business growth and enhance the performance of your VB.NET application.
Development and Testing:
Our developers use the latest VB.NET tools and technologies to create the solution, followed by rigorous testing for functionality, security, and performance.
Deployment and Support:
We commit to giving you comprehensive full-time maintenance and support after the deployment, ensuring that the application operates smoothly, maintaining freshness through pertinent enhancement over time.
Iterative Feedback:
From the development cycle, we remain in close contact with you while taking your feedback and perfecting the solution for you.


E-Commerce:
Design secure, scalable ecommerce platforms on VB.NET with smooth payment processing, inventory management, and customer experience.
Healthcare:
Create HIPAA compliant healthcare applications to help efficiently manage patients, provide telemedicine services, and develop electronic health record systems.
Finance:
Devise financial applications that enable safe transactions, real-time processing of data, and high-performance risk analysis in VB.NET.
Education:
E-learning platforms, online classrooms, and educational management systems create avenues for better collaboration and rich knowledge sharing.
Logistics and Supply Chain:
Optimize Logistics Operation through VB.NET-based Real-time Tracking Systems, Inventory Management, and Route Optimization Applications.
Check our success stories of innovative apps and seamless web solutions. These case studies demonstrate how our expert team at Facile Technolab converted raw ideas in visually appealing platforms with and brought satisfying results with our expert VB.NET development services:
How Facile Technolab helped Medical Device CTO Reduced Diagnostic Errors by 25% with Custom SaaS on Blazor & Azure.
Read Full Case Study
Facile Technolab helped a LegalTech startup in Australia design, develop, and launch a LegalTech SaaS Platform MVP.
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Discover how Facile Technolab built a robust Cruise Management SaaS Platform for a client in Croatia.
Read Full Case StudyASP.NET Core vs Node.js for enterprise apps: performance, scalability, team costs, and ecosystem compared. A practical guide based on real project experience.
A guide for CTOs, architects, and engineering leaders planning legacy modernization. Find out which NuGet packages can be upgraded, replaced, removed, or redesigned based on real-world migration experiences.
Explore the best .NET background job and workflow orchestration tools in 2026 including Hangfire, Temporal, Quartz.NET, Elsa, and Workflow Core for scalable SaaS platforms.
Find answers to commonly asked questions about our VB.NET development services.
VB.NET is a programming language that is part of the .NET framework and is designed to create robust and scalable applications.
VB.NET offers simplicity, ease of use, and seamless integration with the .NET framework, making it ideal for rapid application development.
Yes, our VB.NET developers have expertise in building both web and desktop applications using VB.NET.
Yes, we have successfully migrated numerous VB6 applications to VB.NET, ensuring smooth transition and modernization.
Absolutely! Our VB.NET developers have experience in integrating third-party libraries and components to enhance application functionality.
We have served clients across various industries, including finance, healthcare, e-commerce, and manufacturing, among others.
Yes, we offer comprehensive support and maintenance services to ensure your VB.NET applications run smoothly and stay up-to-date.
We follow industry-standard practices for testing and quality assurance to deliver reliable and bug-free VB.NET applications.
Yes, we can help you with deploying and hosting your VB.NET applications on various platforms, including cloud-based environments.
Yes, we offer dedicated VB.NET developers who can work exclusively on your projects for extended periods.
We implement robust security measures, including data encryption, secure coding practices, and vulnerability assessments, to safeguard VB.NET applications.
Yes, we have experience in integrating VB.NET applications with third-party systems, APIs, and web services for seamless data exchange.
The project timeline depends on the scope and complexity of the project. We work closely with clients to define realistic timelines and deliver projects on time.
Simply reach out to us through our contact form or give us a call. Our team will be happy to discuss your requirements and provide a tailored solution.
Looking to leverage VB.NET for your next project? Contact us today to hire VB.NET developers and create high-performance, scalable applications that will help drive your business forward.
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