Page 2 | Best Application Development Software for .NET

DeepSource

DeepSource helps you automatically find and fix issues in your code during code reviews, such as bug risks, anti-patterns, performance issues, and security flaws. It takes less than 5 minutes to set up with your Bitbucket, GitHub, or GitLab account. It works for Python, Go, Ruby, and JavaScript. DeepSource covers all major programming languages, Infrastructure-as-Code, secrets detection, code coverage, and more. You won't need any other tool to protect your code. Start building with the most sophisticated static analysis platform for your workflow and prevent bugs before they end up in production. Largest collection of static analysis rules in the industry. Your team's central hub to track and take action on code health. Put code formatting on autopilot. Never let your CI break on style violations. Automatically generates and applies fixes for issues in a couple of clicks.

Starting Price: $12 per user per month

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Nevron Open Vision for .NET

Nevron Software

Nevron Open Vision for .NET is a suite of advanced components for .NET application development under WinForms, WPF, and Xamarin.Mac. All the components in the suite are cross platforms. NOV changes how you develop with .NET as with it you can write UI code that runs on Windows and Mac OS X without any modifications. Further, NOV provides a consistent window-less UI experience that provides fast and efficient management of UI resources, flicker-free, and 4K-enabled interfaces. All controls in the suite are GPU accelerated. Besides quality common UI controls (buttons, checkboxes, list boxes, tree view, etc.) NOV also includes class-leading heavy controls such as Barcode, Chart, Diagram, Gauge, Grid, Rich-Text Editor, and Scheduler. All controls in the suite are implemented both as native NOV controls and as platform-specific - WinForm, WPF, or Xamarin. Mac controls, which allows you to simply drag and drop them to your forms. All common UI controls in the suite are completely free.

Starting Price: $ 1496.00

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Typemock

The easiest way to unit test. Write tests without changing your code! Even legacy code. Static methods, private methods, non-virtual methods, out parameters and even members and fields. Our professional edition is free for developers around the world. We also have paid support package. Improve your code integrity and deliver quality code. Fake entire object models with a single statement. Mock statics, private, constructors, events, linq, ref args, live, future, static constructors. Our suggest feature creates automated test suggestions suitable for your code. Our smart runner will run only your impact tests and get you super fast feedback. Our coverage feature displays your code coverage in your editor while you code.

Starting Price: $479 per license per year

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SmartBear AQTime Pro

SmartBear

Debugging should be simple. AQTime Pro synthesizes complex memory and performance information into digestible, actionable insights so you can quickly find bugs and their root cause. Finding and squashing highly differentiated bugs is tedious and complicated, but AQTime Pro makes it easy. With over a dozen profilers, you can find memory leaks, performance bottlenecks, code coverage gaps and more in just a few clicks. AQTime Pro enables you to squash all bugs with one tool and get back to making high quality code. Don’t let code profilers box you in with a single codebase or framework and prevent you from finding performance bottlenecks, memory leaks, code coverage gaps unique to your project. AQTime Pro is the one tool to use across multiple codebases and frameworks in a project. It has broad language support for C/C++, Delphi, .NET, Java and more.

Starting Price: $719 one-time payment

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Visual Basic

Microsoft

Visual Basic is an object-oriented programming language developed by Microsoft. Using Visual Basic makes it fast and easy to create type-safe .NET apps. Visual Basic focuses on supplying more of the features of the Visual Basic Runtime (microsoft.visualbasic.dll) to .NET Core and is the first version of Visual Basic focused on .NET Core. Many portions of the Visual Basic Runtime depend on WinForms and these will be added in a later version of Visual Basic. .NET is a free, open-source development platform for building many kinds of apps. With .NET, your code and project files look and feel the same no matter which type of app you're building. You have access to the same runtime, API, and language capabilities with each app. A Visual Basic program is built up from standard building blocks. A solution comprises one or more projects. A project in turn can contain one or more assemblies. Each assembly is compiled from one or more source files.

Starting Price: Free

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PascalABC.NET

The new generation Pascal programming language combines the simplicity of classic Pascal, a great number of modern extensions, and the broad capabilities of Microsoft .NET Framework. Free, simple, and powerful IDE. Built-in form designer for rapid development of Windows desktop applications. Download the latest version of PascalABC.NET with a build-in form designer. Several extensions of the Pascal language, including the foreach operator, in-block variable definitions, auto type deduction in variable definitions, simplified syntax of units, method implementations inside classes and records, a new operator for object construction, anonymous classes, auto-classes, BigIntegers, etc. The most modern features of programming languages like n-dimensional dynamic arrays, generics, interfaces, operator overloading, exceptions, garbage collection, and lambda expressions. IDE with integrated debugger, IntelliSense system, code templates, and code auto-formatting.

Starting Price: Free

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Small Basic

Small Basic is the only programming language created especially to help students transition from block-based coding to text-based coding. By teaching the fundamental elements of syntax-based languages in an approachable manner, Small Basic gives students the skills and confidence to tackle more complex programming languages such as Java and C#. You can also build applications for Kinect, Lego Mindstorm, Raspberry Pi, Arduino, Oculus Rift, and more using Small Basic. Small Basic combines a friendly environment with a very simple language and a rich and engaging set of libraries to make your programs and games pop! In a matter of a few lines of code, you will be well on your way to creating your very own game! Share your programs with your friends and let them import your published programs and run them on their computers. Using the Silverlight player, you can even post your games on your own blogs and websites and play them in the browser.

Starting Price: Free

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Oracle Data Access Components (ODAC)

Oracle

Oracle Data Access Components (ODAC) are a set of Windows and .NET data access drivers and tools. They include support for .NET data access, Microsoft Visual Studio tools for developing Oracle database applications; and ASP.NET providers. ODAC provides comprehensive client support for advanced Oracle database functionality, including performance, high availability, and security, among other features. It is tightly integrated with Visual Studio to provide a seamless development experience for developers. Oracle Data Provider for .NET is an implementation of Microsoft's ADO.NET interface and provides access to Oracle databases. OLAP Data Manipulation Language (OLAP DML) is used to define and manipulate analytic workspace objects. High performance, a feature-rich mechanism for Microsoft ADO and OLE DB data access to Oracle databases, its usage, and its configuration. Provides introductory, installation, post-installation configuration, and usage information.

Starting Price: Free

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Bunifu Framework

Bunifu Framework UI tools provides you with all the tools you need to create modern desktop apps in less time. With Bunifu Framework UI tools, you get all the tools you need to maximize your creativity, make you more productive and save you money in Visual Studio .NET for C# and VB.NET. You are equipped to achieve any design you can think of with Bunifu Framework. You can do this using the custom properties included in each feature. The fast way to develop multiple views within a form or user control is by using Bunifu pages. With Bunifu Image Button, you can quickly add interactivity using animation to your images. Bunifu Shapes makes it possible to easily design different types of geometrical shapes. Simply show to rich context notification information using Bunifu Tooltip with events support.

Starting Price: $199 per year

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Essential Objects

Quickly extend your .NET application with PDF file generating/processing ability, or seamlessly integrate the popular Chromium browser engine both for UI or background task with extensive customization options such as custom resource loader and JavaScript extension. Not suitable for newer ASP.NET framework such as MVC, but perfect for maintaining legacy WebForm code/modules in a larger MVC application. Add browser capacity in Windows.Forms and WPF app simply by drag and drop. Extensive customization options for UI, resource loader and JavaScript interface. Support .Net Framework 2.0 and above, .NET Core 3.0 and above.

Starting Price: $799 one-time payment

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Xafari Framework

Galaktikasoft

Xafari is a business application framework for .NET developers. It is a set of components, modules, and utilities complementing XAF, DevExpress framework, and enhancing its capacity. Xafari provides further modules for DevExpress XAF UI (Workplaces, Doc Panels, Wizards and others) and business logic (XafariModuleBase, AppModule, Application settings and others). The framework is intended to create complex business applications in two- and three-tier architecture. Our one-year subscription provides you with the greatest tools and components for business application development. Test it for free! Download our 30-days free trial and start your app creation right now. More than 100 additional modules. More than 50 additional functions and solutions. More than 40 new editors. More than 10 examples and online BI platforms to explore new opportunities. A set of ERP components. WinForms, WebForms, and ASP.Net MVC platforms support. Qualified and prompt technical support.

Starting Price: $299 per year

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Blazor

Microsoft

Blazor lets you build interactive web UIs using C# instead of JavaScript. Blazor apps are composed of reusable web UI components implemented using C#, HTML, and CSS. Both client and server code is written in C#, allowing you to share code and libraries. Blazor is a feature of ASP.NET, the popular web development framework that extends the .NET developer platform with tools and libraries for building web apps. Blazor can run your client-side C# code directly in the browser, using WebAssembly. Because it's real .NET running on WebAssembly, you can re-use code and libraries from server-side parts of your application. Alternatively, Blazor can run your client logic on the server. Client UI events are sent back to the server using SignalR - a real-time messaging framework. Once execution completes, the required UI changes are sent to the client and merged into the DOM.

Starting Price: Free

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Windows Forms

Microsoft

Welcome to the Desktop Guide for Windows Forms, a UI framework that creates rich desktop client apps for Windows. The Windows Forms development platform supports a broad set of app development features, including controls, graphics, data binding, and user input. Windows Forms features a drag-and-drop visual designer in Visual Studio to easily create Windows Forms apps. Windows Forms is a UI framework for building Windows desktop apps. It provides one of the most productive ways to create desktop apps based on the visual designer provided in Visual Studio. Functionality such as drag-and-drop placement of visual controls makes it easy to build desktop apps. With Windows Forms, you develop graphically rich apps that are easy to deploy, update, and work while offline or while connected to the internet. Windows Forms apps can access the local hardware and file system of the computer where the app is running.

Starting Price: Free

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xUnit.net

xUnit.net is a free, open source, community-focused unit testing tool for the .NET Framework. Written by the original inventor of NUnit v2, xUnit.net is the latest technology for unit testing C#, F#, VB.NET and other .NET languages. xUnit.net works with ReSharper, CodeRush, TestDriven.NET and Xamarin. It is part of the .NET Foundation, and operates under their code of conduct.

Starting Price: Free

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Playwright

Playwright supports all modern rendering engines including Chromium, WebKit, and Firefox. Test on Windows, Linux, and macOS, locally or on CI, headless or headed. Playwright waits for elements to be actionable prior to performing actions. It also has a rich set of introspection events. The combination of the two eliminates the need for artificial timeouts - the primary cause of flaky tests. Playwright assertions are created specifically for the dynamic web. Checks are automatically retried until the necessary conditions are met. Configure test retry strategy, capture execution trace, videos, screenshots to eliminate flakes. Browsers run web content belonging to different origins in different processes. Playwright is aligned with the modern browsers architecture and runs tests out-of-process. This makes Playwright free of the typical in-process test runner limitations.

Starting Price: Free

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SpecFlow

SpecFlow makes test automation easier by turning it into a team effort and allowing every role to better use their skills. Don’t waste your time searching for the correct definition across your binding classes, just right-click and jump to the relevant code. Hooks (event bindings) can be used to perform additional automation logic at specific times, such as any setup required prior to executing a scenario. SpecFlow supports a dependency injection framework that is able to instantiate and inject context for scenarios. This allows you to group the shared state in context classes, and inject them into every binding class that needs access to that shared state.

Starting Price: Free

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RapidFort

Automatically eliminate unused software components and deploy smaller, faster, more secure workloads. RapidFort drastically reduces vulnerability and patch management queues so that developers can focus on building. By eliminating unused container components, RapidFort enhances production workload security and saves developers from unnecessarily patching and maintaining unused code. RapidFort profiles containers to understand what components are needed to run. Run your containers as normal in any environment, dev, test, or prod. Use any container deployment, including Kubernetes, Docker Compose, Amazon EKS, and AWS Fargate. RapidFort then identifies which packages you must keep, enabling you to remove unused packages. Typical improvements are in the 60% to 90% range. RapidFort also provides the option to build and customize remediation profiles, allowing you to pick and choose what to retain or remove.

Starting Price: $5,000 per month

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gopaddle

Unleash the power of the no-code platform for modern applications. Build, Provision, Run and Scale Cloud-Native Applications by leveraging your team's current capabilities. Unlock the potential of your applications, capture new revenue opportunities and exceed customer expectations by modernizing your legacy and greenfield applications rapidly. Be the first to market and lead the change. Leverage Out-of-the-box DevOps capabilities in the platform to simplify and automate your software delivery and maintenance. Spice up your 'cloud first' strategy with multi and hybrid cloud enablement. Avoid vendor lock-in and give the flexibility of choice to your teams to bring their own cloud and infrastructure. Eliminate manual errors due to human factors and save time to modernize applications. Debug and resolve issues faster than before using the built-in developer tools.

Starting Price: $45 per month

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PDFKit.NET 5.0

TallComponents

Create and manipulate PDF documents. Split, append, stamp, encrypt, extract, fill, and more. PDFKit.NET is a 100% managed (verifiable) .NET class library for creating and manipulating PDF documents. It consists of just a single assembly that can be xcopy-deployed. It has no dependencies other than the .NET framework. Central to PDFKit.NET is a consistent and highly intuitive object model consisting of classes like document, page collection, page, canvas, shape, bookmark, annotation, field, etc. The focus of the development team is always to ease the task of integrating our class library into a larger application. Fill text fields, checkboxes, radio buttons, etc., and save the form either editable or flattened with the PDFKit.NET 5.0. With PDFKit.NET 5.0 you can populate and consume dynamic XFA documents with the new XFA processor API. Extract all graphics on a page as a collection of shapes with PDFKit 5.0. Shapes can be text, images, and curves.

Starting Price: $990 per year

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MergeBase

With the lowest false positive software composition analysis (SCA) scanner, comprehensive software bill of materials (SBOM) engine, and patented Java Dynamic Application Hardening capability, MergeBase provides the only software supply chain security solution offering real-time DevSecOps visibility of third-party risk from development into operation covering all major languages from C/C++, .NET, JavaScript/NPM to Java.

Starting Price: $380 per month

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Avalonia UI

Avalonia UI enables developers to create multi-platform apps with .NET. Write once, and run everywhere. Save time and focus on your product. Considered a spiritual successor to WPF, Avalonia UI provides a familiar developer experience, allowing you to leverage years of pre-existing knowledge and investments. rusted by JetBrains as the best framework for modernizing their WPF-based tools, used by >170,000 companies, including 431 on the Fortune 500 list. Our developer community has grown enormously as Avalonia UI has grown in popularity. Join us and be welcomed into our supportive and vibrant community.

Starting Price: Free

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NCover

NCover Desktop is a Windows application that helps you collect code coverage statistics for .NET applications and services. After coverage is collected, Desktop displays charts and coverage metrics in a browser-based GUI that allows you to drill all the way down to your individual lines of source code. Desktop also allows you the option to install a Visual Studio extension called Bolt. Bolt offers built-in code coverage that displays unit test results, timings, branch visualization and source code highlighting right in the Visual Studio IDE. NCover Desktop is a major leap forward in the ease and flexibility of code coverage tools. Code coverage, gathered while testing your .NET code, shows the NCover user what code was exercised during the test and gives a specific measurement of unit test coverage. By tracking these statistics over time, you gain a concrete measurement of code quality during the development cycle.

Starting Price: Free

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Extism

Dylibso

Extism is an open-source, universal plug-in system to make all software programmable, and it's powered by WebAssembly. In-depth documentation, constantly updated as the project grows. 15+ officially supported Host SDKs, making Extism embeddable in the most popular languages. 7+ officially supported PDKs, to write plug-ins in whichever language a developer would like. A growing set of runtime features makes Extism an excellent plug-in system for apps of all types & sizes. Fully-featured canonical reference demo with Elixir host SDK, and plugins in Rust, TypeScript, & Javascript. Implementation of a turn-based multiplayer game platform and games included to play and review. Games are implemented as WebAssembly modules containing a specific set of exports. Check out the source code on GitHub, download the installer, and get started. 100% open-source code. Fork it, experiment, & run your own game server.

Starting Price: Free

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Nancy

Welcome to Nancy, our main inspiration is the Sinatra framework for Ruby and, hence, Nancy was named after the daughter of Frank Sinatra. NancyFx is the name of the umbrella project that contains all the components. Nancy is a lightweight, low-ceremony, framework for building HTTP-based services on .NET and Mono. The goal of the framework is to stay out of the way as much as possible and provide a super-duper-happy path to all interactions. This means that everything in Nancy is setup to have sensible defaults and conventions, instead of making you jump through hoops and go through configuration hell just to get up and running. With Nancy you can go from zero to website in a matter of minutes. Nancy is built to run anywhere and we mean it. Right from the start, Nancy was designed to not have any dependencies on existing frameworks. Built with the .NET framework client profile, Nancy can be used pretty much wherever you want to.

Starting Price: Free

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Mono

Cross-platform, open source .NET framework. Sponsored by Microsoft, Mono is an open-source implementation of Microsoft's .NET Framework as part of the .NET Foundation and based on the ECMA standards for C# and the common language runtime. A growing family of solutions and an active and enthusiastic contributing community is helping position Mono to become the leading choice for the development of cross-platform applications. The latest Mono release is waiting for you. We cover everything you need to know, from configuring Mono to how the internals are implemented. Our documentation is open source too, so you can help us improve it. As an open-source project, we love getting contributions from the community. File a bug report, add new code or chat with the developers. Mono is a software platform designed to allow developers to easily create cross-platform applications.

Starting Price: Free

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DevCycle

DevCycle is the leading feature management platform that combines the benefits of OpenFeature and continuous delivery. Open Source Flexibility + SaaS Simplicity: DevCycle is the only platform where OpenFeature is built-in to its SDKs and fully committed to the open standards community with open source SDKs and APIs. This flexibility is combined with DevCycle’s edge architecture and local bucketing to provide teams high scalability and low latency partnered with enterprise-level security and compliance guarantees. Total Observability Into Your Feature Flags: Teams have complete visibility into all their features across their organization. DevCycle observability integrations help track, monitor and diagnose feature flag usage while developer integrations and tooling give full control and visibility into feature flags within code. Customized Release Strategies: Teams can choose their preferred feature release strategies with advanced tools for gradual and percentage based rollout

Starting Price: 0

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Polar Signals

Polar Signals cloud is an always-on, zero-instrumentation continuous profiling product that helps improve performance, understand incidents, and lower infrastructure costs. With just one command and the easiest onboarding guide you’ll ever see, you can start saving costs and optimizing performance in your infrastructure. Travel back in time to pinpoint incidents and issues. Profiling data provides unique insight and depth into what a process executed over time. Utilize profiling data collected over time to confidently and statistically identify hot paths for optimization. Many organizations have 20-30% of resources wasted with code paths that could be easily optimized. Polar Signals Cloud employs an exceptional blend of technologies, purpose-built to deliver the profiling toolset essential for today's evolving infrastructure and applications. With a zero instrumentation setup, deploy immediately and reap the benefits of actionable observability data.

Starting Price: $50 per month

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Peach Fuzzer

Peach Tech

Peach is a SmartFuzzer that is capable of performing both generation and mutation-based fuzzing. Peach requires the creation of Peach Pit files that define the structure, type information, and relationships in the data to be fuzzed. It additionally allows for the configuration of a fuzzing run including selecting a data transport (publisher), logging interface, etc. Peach has been under active development since 2004 and is in its third major version. Fuzzing continues to be the fastest way to find security issues and test for bugs. Effective hardware fuzzing with Peach will introduce students to the fundamentals of device fuzzing. Peach was designed to fuzz any type of data consumer from servers to embedded devices. Researchers, corporations, and governments already use Peach to find vulnerabilities in hardware. This course will focus on using Peach to target embedded devices and collect information from the device in the event of a crash.

Starting Price: Free

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Workflow Engine

Optimajet

Embeddable .NET library for running workflows in .NET applications with integrated HTML5 graphical workflow designer. Designer allows you to easily create interactive workflows of any complexity, there’s no need to draft them programmatically. Workflow Engine is a backbone solution for business process management (BPM) which makes it feasible to automate the workflow design by using low-code visual builders. It is based on the .NET framework and JavaScript libraries. Workflow Engine enables workflow processing and correct integration by providing a graphic designer to create process workflow schemes and at the same time, this software component facilitates the management, execution, and visualization of workflow processes. Integration with solutions based on other technologies or databases is roughly the same and should not entail any difficulties. Workflow Engine offers its users all the components necessary to implement workflows of any complexity.

Starting Price: $499 one-time payment

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Qodana

JetBrains

Static code analysis by Qodana helps development teams follow agreed quality standards, and deliver readable, maintainable, and secure code. Powered by JetBrains. We’ve been perfecting the code analysis in our IDEs for 20+ years based on feedback from millions of community members. Qodana relies on the lines of JetBrains IDEs and brings their intelligence to the CI side. Just like in our IDEs, Qodana’s analysis is accurate but not overbearing and understands the nuances of your code. Integration with tools developers use daily, including JetBrains IDEs, makes it easy to work with Qodana’s results in whichever tool you're most comfortable with. Qodana doesn’t only report problems; it also suggests automatic fixes. Qodana calculates licenses per active contributor, so it won’t cause unexpected expenses or charge you for growing your project (as we don’t calculate LOCs). It’s also free for open-source projects.

Starting Price: $5 per month

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Best Application Development Software for .NET - Page 2

Compare the Top Application Development Software that integrates with .NET as of June 2025 - Page 2

DeepSource

Nevron Open Vision for .NET

Typemock

SmartBear AQTime Pro

Visual Basic

PascalABC.NET

Small Basic

Oracle Data Access Components (ODAC)

Bunifu Framework

Essential Objects

Xafari Framework

Blazor

Windows Forms

xUnit.net

Playwright

SpecFlow

RapidFort

gopaddle

PDFKit.NET 5.0

MergeBase

Avalonia UI

NCover

Extism

Nancy

Mono

DevCycle

Polar Signals

Peach Fuzzer

Workflow Engine

Qodana

Best Application Development Software for .NET - Page 2

Compare the Top Application Development Software that integrates with .NET as of June 2025 - Page 2

DeepSource

Nevron Open Vision for .NET

Typemock

SmartBear AQTime Pro

Visual Basic

PascalABC.NET

Small Basic

Oracle Data Access Components (ODAC)

Bunifu Framework

Essential Objects

Xafari Framework

Blazor

Windows Forms

xUnit.net

Playwright

SpecFlow

RapidFort

gopaddle

PDFKit.NET 5.0

MergeBase

Avalonia UI

NCover

Extism

Nancy

Mono

DevCycle

Polar Signals

Peach Fuzzer

Workflow Engine

Qodana

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