Health and Safety Online Training Courses
Health and Safety Online Training Courses...
Read more
ASP.NET WebForms Developers for Legacy System Maintenance & Modernization
The One Technologies team has worked with ASP.NET WebForms since 2015. We've kept aging applications running for clients in finance, healthcare, logistics, and retail. Helping others map a path off them when the time came.
Post Your Requirement
Discuss Project Feasibility
Pick Our Asp.Net Webforms Experts
Choose Hiring Model
Sign-off and Start...
Hire ASP.NET WebForms Developers for Your Next Project
Finding the right talent for your WebForms project shouldn't slow you down. If you need a single dedicated ASP.NET WebForms developer or an entire team. The One Technologies has pre-vetted professionals who can jump right in from day one.
Vetted Expertise
Demonstrated experience with Web Forms architecture, managing the postback life cycle, working with server-side controls, and using code-behind patterns in a practical way.
Flexible Hiring Models
You can hire on a fixed-cost basis with a dedicated resource, or go hourly. Depending on how big the project is and what the budget looks like.
Quick Onboarding
Our dedicated ASP.NET WebForms developers slot into your current team, your established tooling and day-to-day workflows within a few days, not weeks.
Transparent Communication
Sprint reviews and near-live progress reporting keep you fully in the loop for the whole engagement. You will always know exactly what is being built, who is building it, and how your budget is being utilized.
No Lock-In
Adjust headcount up or down as requirements shift over time, without lock-in constraints. This gives you the ultimate freedom to scale resources to match your fluctuating roadmap without financial penalties.
ASP.NET WebForms Maintenance Services to Keep Your Application Running Smoothly
Our ASP.NET WebForms maintenance services are designed to keep your platform stable, secure, and performing at its best - month after month. We keep legacy ASP.NET systems alive and running. If you have an application built on .NET Framework 2.0 through 4.8, we handle the day-to-day maintenance. Windows Server management and IIS configurations required to keep it stable.
Making sure it doesn't break when connecting to your internal infrastructure or third-party APIs. We understand WebForms & know how to deal with ViewState headaches and erratic postback behavior without rewriting the whole application from scratch.
ASP.NET WebForms Modernization - Migrate to ASP.NET Core or .NET 10
ASP.NET WebForms apps are becoming harder to maintain and modernize. And they are falling way behind modern cloud alternatives on performance. Our modernization services help you upgrade at your own pace without breaking the core business logic your teams rely on.
Assessment & Roadmap
We do an audit of your codebase, map the dependencies, spot the risky spots, then lay out a phased migration plan before we touch a single line.
Incremental Migration
With Microsoft's YARP reverse proxy and side-by-side hosting strategies, we move over page by page. So, risk stays low and parallel testing is actually possible.
Business Logic Preservation
The core workflows, validation rules and integrations get carried forward as is. We refactor the UI layers, but we do not rebuild what already works.
Database & ORM Modernisation
When it makes sense, we migrate from raw ADO.NET or DataSets toward Entity Framework Core. Helping maintainability and also tends to improve query performance a bit.
Full WebForms to .NET 10 Migration
We rebuild the app on modern ASP.NET Core, Razor Pages, or Blazor. The original WebForms application stays in place as the functional specification.
Testing & Validation
At each stage we run comprehensive regression testing. By continuously verifying performance, we deliver a rock-solid product that maintains a consistent user experience.
WebForms Bug Fixing, Performance Tuning, and IIS Support
The One Technologies team specialises in diagnosing and resolving exactly these kinds of challenges.
ViewState Optimization
Huge ViewState is usually why old WebForms pages crawl. We look under the hood at your page hierarchy to find out which controls are hoarding data. Shut it off where it's not doing anything, or move it to Session state instead. You can usually strip 40% to 70% off the total page weight this way. And your forms will still work exactly the same.
WebForms Performance Tuning
We track down performance lag wherever it lives. Whether that's a hanging database query, heavy application logic, or slow rendering. To pinpoint the exact issue, we profile the stack using SQL Profiler, Application Insights with ANTS Performance Profiler. Once we see what's causing the slowdown, we fix it with practical steps like query optimization, output caching, HTTP compression and offloading static assets.
WebForms Bug Fixing
If you've ever spent an afternoon tracing a ghost bug through the WebForms page lifecycle, you know exactly how brutal it is. It’s the kind of debugging that makes most developers want to log off for the day. Our team sticks around to solve them. We dig into the framework to find out exactly why the state broke. Fix it and write down the root cause so no one else has to lose time to the same bug.
IIS Support & Configuration
If your IIS server is throwing 503 errors, recycling at the worst possible moments, or dropping connections, we can fix it. We handle the technical side of IIS that usually causes headaches. Such as tuning application pools, setting up predictable worker process recycling policies, and writing URL rewrite rules that don't break your routing.
Session & Authentication Issues
We fix the broken session states and authentication cookies that trigger errors for your users in production. We find the root cause and get it running right. By reinforcing your security protocols and stabilizing session persistence, we ensure your users stay securely logged in without frustrating interruptions.
Outsource ASP.NET WebForms Development to Trusted Legacy .NET Specialists
It is incredibly difficult to hire and retain WebForms talent right now. Outsourcing your ASP.NET WebForms development to The One Technologies solves this bottleneck. By giving you access to engineers who know the platform inside out.
If you are stuck supporting a legacy WebForms app that still needs consistent maintenance. New features or an eventual migration strategy, we can handle it. Our legacy .NET practice is built specifically to cut your operational costs without sacrificing the stability of your software.
Industries We Serve
Financial Services
Trading platforms, reporting dashboards, and client portals for banks, investment firms, and insurers. These systems need to stay up and stay secure. We know that.
Healthcare
Patient management, billing, and regulatory reporting tools on WebForms. Keeping these systems HIPAA-compliant and available is the job. We've done it.
Logistics & Retail
Inventory systems, order portals, and warehouse tools that still run the business every day. Maintenance and optimization, not replacement for its own sake.
Government
Many government departments still run on WebForms. We work within the budget constraints and compliance requirements that come with that territory.
Client Testimonials
We were looking for Accounting CRM and The One Technologies served us with the best application with all required features.
Our app is available in the Google Play store, and working great. We are satisfied with the services and the final product.
The team possesses the expertise and offered an attractive app along with a positive communication approach.
Our Success Stories
Health and Wellness Tracking Mobile App - Diet, Meditation, and Habit Monitoring
Three wellness apps built for different self-tracking use cases. 'B100 Method' handles health assessment with...
Read more
Online Payment Gateway Solutions
Online payment gateway service provider company is a B2B focused API driven platform where businesses can plug and ...
Read more
CRM and Accounting Web Portal for Freelancers and Small Businesses
Now you can create and send unlimited estimates and invoices that beautifully match your company branding with this ...
Read more
eCommerce Web App Customized Gifts
eCommerce Web App Customized Gifts...
Read more
Online Tyre Shop - Ecommerce Web Portal
Online Tyre Shop - Ecommerce Web Portal...
Read more
Pet Waste Removal Services Marketplace
Pet Waste Removal Services Marketplace...
Read more
Live Traffic Monitoring - Mobile App and Website
This Live Traffic Monitoring - Mobile App and Website helps you save time in case if you want to step out of your home. This live...
Read more
Hotel Booking Website Development
Hotel Booking Website Development...
Read more
Car Rental Portal - Marketplace Website
The Car Rental Portal - Marketplace Website Application is specialized in providing dynamic vehicles or cars for Touring,...
Read more
Online Course Academy - E-learning software solution
This Online Course Academy - E-learning software solution provides IT technical, academy online learning, Project ...
Read more
Audio-Based Language Learning Mobile App - Multilingual Lessons and Translations
A pair of mobile language learning apps focused on audio-first content. Knumero teaches everyday...
Read more
Machine Learning Chatbot Application
Machine Learning Chatbot Application...
Read more
Event Management and Ticketing Website
The System provides an easily customizable, personalized ticketing website for venues of all sizes. To provide an ...
Read more
Football Networking - Sport Web Portal
Football Networking - Sport Web Portal...
Read more
Intelligent Blog Post Generator
Creating well-structured blog posts can be time-consuming and challenging, especially for content creators who need to maintain consistency. The process...
Read more
Personalized Movie Suggestion Engine
Find movies that are just right for you with our AI-driven recommendation engine. Our intelligent...
Read more
Productivity and Goal-Tracking Mobile App - Task Management for Personal and Team Workflows
A mobile app suite for personal task management and collaborative goal setting. The platform lets users capture daily to-dos,...
Read more
RFI Project Management Platform for Construction and Engineering Teams
A web-based RFI project management platform for construction and engineering teams that tracks every Request for Information from open to closed, with subscription management for SaaS resale...
Read moreRelated Resources
Is ASP.NET WebForms Still Supported in 2026? | The One Technologies
Managing legacy ASP.NET WebForms apps? Discover the technical realities, security risks, and 3 strategic migration pathways for your enterprise software in 2026. ...
ASP.NET WebForms vs MVC vs .NET Core: Which to Choose? | Blog
Compare ASP.NET WebForms, MVC, and .NET Core. Learn which framework minimizes technical debt, reduces hosting costs, and delivers the best business value. ...
Schedule a Call
Discuss your ASP.NET WebForms challenges with our experts. We will help you choose the best maintenance, migration, or modernization approach.
Talk to Our Asp.Net WebForms ExpertFrequently Asked Questions
How quickly can I onboard a dedicated ASP.NET WebForms developer from The One Technologies
We can get a dedicated ASP.NET WebForms developer on your project in 3 to 5 days. We talk through what you need. Just hop on a quick call to shortlist candidates, and sort out the engagement model. If it’s a standard build, we can usually wrap up the whole onboarding process in under a week.
What is the difference between hiring a dedicated ASP.NET WebForms developer and hiring on an hourly basis?
If you hire a dedicated ASP.NET WebForms developer, they’re all yours for the length of the contract. They stick to your project, get to know your codebase inside out, and you don't have to compete for their time. Hourly hiring is better if you just need a hand with small, random tasks. Think quick bug fixes, adding a single feature, or doing a code review for a few hours a month.
Do you provide ongoing legacy ASP.NET support for applications built on older versions of the .NET Framework?
If you have older WebForms apps running on .NET Framework 2.0 through 4.8? You don't necessarily need to rewrite them from scratch. We keep legacy ASP.NET applications running smoothly on Windows Server and IIS by handling the chores. Security patches, database maintenance, and broken dependencies. You get to keep your stable, secure system online without forcing an immediate, painful migration on your team.
What does your WebForms application support SLA look like?
We tier our support SLAs by severity to ensure you get help when you need it most. If you hit a critical production issue? Like the application going down or a risk of data loss. We will work on it continuously until it is fixed. For high priority bugs that disrupt core functionality, our team will dive in within four business hours. Standard enhancements and non-critical issues go right into our normal schedule. Usually falling into the next agreed sprint or maintenance window. You can find the exact SLA terms spelled out in your support contract.
How long does a typical WebForms to .NET 10 migration take?
How long a migration takes really comes down to three things. The size of your app, the state of your current code, and how many third party systems it talks to. If you are moving a small to medium WebForms app? Say 20 to 50 pages and a single database? You are usually looking at 8 to 16 weeks for a full rewrite to ASP.NET Core. Or .NET 10 For massive enterprise systems packed with complex business logic. A total flip overnight isn't realistic. Those usually require a phased approach spread out over 6 to 12 months. We can give you a firm, accurate timeline once we actually get under the hood and look at your codebase.
Do you have to rewrite the entire application to migrate WebForms to ASP.NET Core?
If you're worried about downtime or risking a massive break, a slow migration is usually the smarter play. You can actually run the new ASP.NET Core app side-by-side with your old WebForms setup. From there, you just peel off pages or modules piece by piece. It keeps you from going completely offline, makes troubleshooting way easier, and lets your team test things out in the wild without committing to a terrifying "go-live" day.
What tools do you use for WebForms performance tuning and diagnosing ViewState issues?
We split our profiling between the backend and the browser. For the application layer, we rely on tools like SQL Profiler, Application Insights, dotTrace, or ANTS. On the frontend, we just use Chrome DevTools to track page weight and loading bottlenecks. ViewState is usually the biggest culprit for bloated pages. We dig into the page trace and control trees to find the exact controls that are hoarding state unnecessarily, and then we disable it where it isn't needed.
How do you protect intellectual property when we outsource ASP.NET WebForms development to your team?
We start every outsourcing project by signing an NDA. From there, your code stays in private, access-controlled repositories, and only the developers assigned to your project can touch it. For highly sensitive projects, we enforce a strict clean-desk policy in our workspace. When the project wraps up, we return your assets and completely purge your code from our systems. If you already have a preferred security framework, just let us know. We're happy to work within your rules.
Ready to Talk About Your WebForms Application?
We'll review your codebase and give you a straight assessment of where things stand. No sales pitch, just a technical read.
