Page 4 | Best Application Development Software for C#

Void Editor

Void is an open source AI code editor and Cursor alternative built as a fork of VS Code, enabling developers to write code with advanced AI assistance while retaining full control over their data. It supports seamless integration with any large language model, such as DeepSeek, Llama, Qwen, Gemini, Claude, and Grok, connecting directly without routing through a private backend. Core features include tab‑triggered autocomplete, inline quick edit, and a versatile AI chat interface offering normal chat, a restricted gather mode for read/search-only tasks, and an agent mode that automates file and folder operations, terminal commands, and MCP tool access. Void delivers high‑performance operations, including fast apply on files with thousands of lines, alongside checkpoint management for model updates, native tool execution, and lint error detection. Developers can transfer all themes, keybindings, and settings from VS Code in one click and host models locally or via the cloud.

Starting Price: Free

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GrowthBook

GrowthBook is an open source feature-flagging and experimentation platform built to help teams release code confidently and measure the impact of product changes using their own data. It enables the creation and management of feature flags of various types (Boolean, number, string, JSON) with targeting rules, percentage roll-outs, safe ramp-ups, and experiment assignment. The platform is warehouse-native, allowing you to connect your data where it already lives (SQL data warehouses, Mixpanel, Google Analytics, and more) and run experiments and analyses without sending raw user-level PII to a third-party service. It supports modular usage; you can adopt just feature flagging, just experiment analysis, or both together. Key capabilities include: high-performance lightweight SDKs (enabling billions of feature lookups per day), a visual editor for no-code AB tests, and experiment reporting with advanced statistical methods.

Starting Price: $20 per month

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Codacy

Codacy is an automated code review tool that helps identify issues through static code analysis, allowing engineering teams to save time in code reviews and tackle technical debt. Codacy integrates seamlessly into existing workflows on your Git provider, and also with Slack, JIRA, or using Webhooks. Users receive notifications on security issues, code coverage, code duplication, and code complexity in every commit and pull request along with advanced code metrics on the health of a project and team performance. The Codacy CLI enables running Codacy code analysis locally, so teams can see Codacy results without having to check their Git provider or the Codacy app. Codacy supports more than 30 coding languages and is available in free open-source, and enterprise versions (cloud and self-hosted). For more see https://www.codacy.com/

Starting Price: $15.00/month/user

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Black Duck

Black Duck, part of the Synopsys Software Integrity Group, is a leading provider of application security testing (AST) solutions. Their comprehensive portfolio includes tools for static analysis, software composition analysis (SCA), dynamic analysis, and interactive analysis, enabling organizations to identify and mitigate security vulnerabilities throughout the software development life cycle. By automating the discovery and management of open-source software, Black Duck ensures compliance with security and licensing standards. Their solutions are designed to help organizations build trust in their software by managing application security, quality, and compliance risks at the speed their business demands. Black Duck empowers businesses to innovate securely and deliver software with confidence.

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Arachnophilia

Arachnoid

Arachnophilia is a Web page development workshop and general programming tool. Arachnophilia is written in the Java computer language.

Starting Price: Free

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Meya

Meya.ai

Accelerate your roadmap. Get to market faster and stay at the forefront of the cognitive revolution. Unlock each developer’s potential with cutting edge technology. A good tech stack starts with a solid foundation. With Meya, your cognitive apps run in a modern computing environment, that is performant, secure, compliant and easily managed. Our team is continually updating our framework to take advantage of the latest in artificial intelligence research. Focus on building a great user experience while we ensure your cognitive app’s hosting, integrations, and more! Build, host, and train your cognitive application in one place. Easily scale your bot and take advantage of the most popular messaging and customer support platforms. Handle any complex use case by connecting to your business back end. Stay focused on the user experience and let us take care of the rest.

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Qwiet AI

The Fastest Code Analysis, Hands Down. 40X faster scan times so developers never have to wait for results after submitting pull requests. The Most Accurate Results. Qwiet AI has the highest OWASP Benchmark score, which is nearly triple the commercial average and more than double the 2nd highest score. Developer-Centric Security Workflows. 96% of developers report that disconnected security and development workflows inhibit their productivity. Implementing developer-centric AppSec workflows decreases mean-time-to-remediation (MTTR), typically by 5X - enhancing both security and developer productivity. Automatically Find Business Logic Flaws in Dev. Identify vulnerabilities that are unique to your code base before they reach production. Achieve Compliance. Demonstrate and maintain compliance with security and privacy regulations such as SOC 2, PCI-DSS, GDPR, and CCPA.

Starting Price: Free

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Sparrow SAST

Sparrow

Support over 20 languages including Java, JSP, C/C++, C#, Python, Swift, ASP(.NET), ABAP, Object C, etc. Complies with global security compliances guides and standards. MVC structure analysis, associated file analysis, and analysis of function call relationship in various levels. Incremental analysis: Minimize analysis time by only analyzing newly added, modified files and their associated files. Interact with other Sparrow AST solutions (DAST, RASP) to identify correlation among vulnerabilities and improve search results. Issue navigator to track and follow vulnerabilities from its origin to actual code. Automated real source code correction guide. Automated classification of vulnerabilities. Dashboard for analysis result management and statistics. Centralized rule (Checker) management based on information including risk levels, option and other.

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Typora

Typora gives you a seamless experience as both a reader and a writer. It removes the preview window, mode switcher, syntax symbols of markdown source code, and all other unnecessary distractions. Instead, it provides a real live preview feature to help you concentrate on the content itself. Typora allows you to manage your files easily, providing both file tree panel and articles (file list) side panel, allows you to manage your files easily. Organize your files your way, including putting in sync services, like Dropbox or iCloud. Automatically see the Outline structure of your documents in outline panel, which allows you to quickly go through the document and jump to any section with one click. Export to PDF with bookmarks. Go further and export or import. More formats, including docx, OpenOffice, LaTeX, MediaWiki, Epub, etc, can be exported or imported. See how large your document is in words, characters, lines, or reading minutes.

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Klocwork

Perforce

Klocwork static code analysis and SAST tool for C, C++, C#, Java, and JavaScript identifies software security, quality, and reliability issues helping to enforce compliance with standards. Built for enterprise DevOps and DevSecOps, Klocwork scales to projects of any size, integrates with large complex environments, a wide range of developer tools, and provides control, collaboration, and reporting for the entire enterprise. This has made Klocwork the preferred static analyzer that keeps development velocity high while enforcing continuous compliance for security and quality. Use Klocwork static application security testing (SAST) for DevOps (DevSecOps). Our security standards identify security vulnerabilities, helping to find and fix security issues early and proving compliance to internationally recognized security standards. Klocwork integrates with CI/CD tools, containers, cloud services, and machine provisioning making automated security testing easy.

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VSCodium

Microsoft’s vscode source code is open source (MIT-licensed), but the product available for download (Visual Studio Code) is licensed under this not-FLOSS license and contains telemetry/tracking. The VSCodium project exists so that you don’t have to download+build from source. This project includes special build scripts that clone Microsoft’s vscode repo, run the build commands, and upload the resulting binaries for you to GitHub releases. These binaries are licensed under the MIT license. Telemetry is disabled. Note for Mac OS X Mojave users, if you see “App can’t be opened because Apple cannot check it for malicious software” when opening VSCodium the first time, you can right-click the application and choose Open. This should only be required the first time opening on Mojave. The most up-to-date information on migrating from Visual Studio Code and other quirks you might encounter are documented.

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NVU

A complete web authoring system for Linux Desktop, Microsoft Windows and Macintosh users to rival programs like FrontPage and Dreamweaver. Nvu (pronounced N-view, for a "new view") makes managing a website a snap. Now anyone can create web pages and manage a website with no technical expertise or knowledge of HTML. Nvu and KompoZer are free, open-source solutions, and are community-supported. If you are having a problem with Nvu or KompoZer, then visit and look for help. NVU 1.0, released in June 2005, is the last official release that you will find at most download sites, however, it isn't the newest or best version of the Nvu software. An unofficial bugfix/update called "KompoZer" is available here. KompoZer is not a cure-all for all the bugs in NVU 1.0, but it does fix some of the major annoyances. If you use NVU 1.0 and it works for you, stick with it. But if you run into problems, give KompoZer a try and see if it helps.

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DroidEdit

Take your work everywhere. Code while you're waiting for the bus or when you're relaxing in a nice beach. Edit your files directly from the cloud. DroidEdit works with Dropbox, Drive, Box, (S)FTP servers and Git. More file providers coming shortly. Syntax highlighting for almost 200 different programming languages. Don't rush to your office if you receive an emergency call asking you to change some code. Just pick your mobile phone and edit everything you need. Checkout, edit, commit and push directly from your phone or tablet. Some developers prefer dark backgrounds, others can only code on paper white screens. To each his own. Use one of the many provided themes for syntax highlighting. If you don't like any, create your own. Expand simple expressions into full fledged HTML code automagically using Emmet.

Starting Price: Free

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SonarQube for IDE

SonarSource

Easy to use, no configuration needed — just install from your favorite IDE marketplace and continue to code while SonarQube for IDE (formerly SonarLint) does its job. Your current linting tools may come with overhead – specialized tools for languages or longer setup and config time. With SonarQube for IDE, you can settle on a single solution to address your Code Quality and Code Security issues. We have you covered with hundreds of unique, language-specific rules to catch Bugs, Code Smells, and Security Vulnerabilities right in the IDE, as you code. From dangerous regex patterns to non-compliant coding standards, SonarQube for IDE is your true confidante in delivering error-free code. With an intelligent tool by your side, your mistakes are only visible to you so you can understand them, quickly remediate them, and learn along the way.

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CodeRush

DevExpress

Try your first CodeRush feature right now and see instantly just how powerful it is. Refactoring for C#, Visual Basic, and XAML, with the fastest test .NET runner available, next generation debugging, and the most efficient coding experience on the planet. Quickly find symbols and files in your solution and easily navigate to code constructions related to the current context. CodeRush includes the Quick Navigation and Quick File Navigation features, which make it fast and easy to find symbols and open files. Using the Analyze Code Coverage feature, you can discover what parts of your solution are covered by unit tests, and find the at-risk parts of your application. The Code Coverage window shows percentage of statements covered by unit tests for each namespace, type, and member in your solution.

Starting Price: $49.99 one time payment

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Coco Code Coverage

Qt Group

Coco by Qt is an end-to-end code coverage and test analysis tool built for teams developing desktop, embedded, and safety-critical software. It supports multiple languages—including C, C++, C#, QML, and Tcl—and provides detailed insight into code coverage across unit, integration, and system testing. Coco helps engineering and QA teams identify untested paths, redundant test cases, and hidden logic branches to improve software reliability and performance. Designed for compliance-driven industries, it generates audit-ready reports aligned with international standards like ISO 26262, DO-178C, and IEC 62304. Seamlessly integrating with CI/CD pipelines and IDEs such as Visual Studio, Eclipse, and Qt Creator, Coco streamlines test validation across toolchains and environments. With precision, automation, and compliance at its core, Coco enables faster releases without compromising quality or safety.

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Phylum

Phylum defends applications at the perimeter of the open-source ecosystem and the tools used to build software. Its automated analysis engine scans third-party code as soon as it’s published into the open-source ecosystem to vet software packages, identify risks, inform users and block attacks. Think of Phylum like a firewall for open-source code. Phylum’s database of open-source software supply chain risks is the most comprehensive and scalable offering available, and can be deployed throughout the development lifecycle depending on an organization’s infrastructure and appsec program maturity: in front of artifact repository managers, directly with package managers or in CI/CD pipelines. The Phylum policy library allows users to toggle on the blocking of critical vulnerabilities, attacks like typosquats, obfuscated code and dependency confusion, copyleft licenses, and more. Users can also leverage OPA to create custom policies.

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CodeFactor

Get a glance at code quality for the whole project, recent commits, and the most problematic files. CodeFactor will track new and fixed issues for every commit and pull request. CodeFactor will try to show the most critical issues first based on issue code size, file change frequency, and file size so you can start fixing only what's important. Create and track issues or comments directly from code files or project issues pages. CodeFactor will update the status for GitHub or Bitbucket pull requests as well. CodeFactor allows you to toggle inspection for any repository branch on the fly. CodeFactor integrates with Slack to send code quality notifications for every commit in a branch or pull request. To install, go to the repository settings page. Straightforward pricing based on private repository number. Plain and simple with no hidden fees. Seamless integration into your workflow.

Starting Price: $19 per month

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Sider Scan

Sider Scan is a lightning-fast duplicate code detection tool for software developers that finds and continuously monitors problems with code duplication. GitLab CI/CD, GitHubActions, Jenkins & CircleCI® integration. Installation using a Docker image. Easy team sharing of the analysis details. Continuous and fast analysis that runs in the background. Dedicated product support via email and phone. Sider Scan enhances long-term code quality and maintenance processes with in-depth duplicate code analysis. It's designed to complement other analysis tools, helping teams to produce cleaner code, and supporting continuous delivery. Sider finds duplicate blocks of code in your project and groups them. For each pair of duplicates, a diff library is created and pattern analyses are initiated to determine if there are any problems. This is referred to as the 'pattern' method of analysis. Time-series analysis is only possible when the scan is consistently run at regular intervals.

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WEBDEV

Windev

Responsive web design, WEBDEV allows you to easily develop Internet and Intranet sites and applications (WEB & SaaS) to manage data and processes. WEBDEV also generates PHP. WINDEV supports all databases. WEBDEV also supports all the databases that use ODBC drivers or OLEDB providers. The WINDEV, WEBDEV and WINDEV Mobile environments are compatible and share project elements. It has never been easier to build multi-target applications. The developer can focus on key business requirements, and not on the code, applications can finally meet your needs. Up to 20 times less code, develop applications in no time! Shorter time to market, allows you to gain market share. Software is easier to develop and improved reliability. Complete application RAD generator for PC, web, and mobile, template creation (patterns, inheritance & MVP). The ease of use and speed that allow you to develop and realize even your most ambitious projects.

Starting Price: $1,703 one-time payment

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WINDEV

Windev

Thanks to its full integration, legendary ease of use, and advanced technology, WINDEV allows you to easily develop large-scale projects in Windows, Linux, .NET, Java, and much more! (Full compatibility with web, mobile, Android, iOS, etc.) WINDEV creates applications for Windows, Linux, and Mac. WEBDEV recompiles them for the Internet. WINDEV Mobile recompiles them for tablets or smartphones. Use the same project, interfaces, objects, elements, and source code regardless of the target. Make the most of your developments, and deploy faster on all devices. The ability to simply recompile an application for different targets is a decisive advantage. It guarantees continuity and the ability to respond to changes. Several automatic features are available. Portable code and objects (for Web browsers and Mobile code). WINDEV supports all the databases that use ODBC drivers or OLEDB providers.

Starting Price: $1,768 one-time payment

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IMSL

Perforce

Enhance performance and save development time with IMSL numerical libraries. Achieve your strategic objectives using IMSL's build tools. Model regression, make decision trees, establish neural networks, and forecast time series with your IMSL library. Rigorously tested and proven for decades across all industries, the IMSL C Numerical Library gives companies a dependable, high-ROI solution for building cutting-edge analytics tools. From data mining and forecasting, to advanced statistical analysis, the IMSL C Numerical Library can help teams quickly add sophisticated functionality to analytic applications. The IMSL C library makes integration and deployment easy. Enjoy easy migrations, support for common platforms and platform combinations, and no added infrastructure on embed in databases or applications.

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Aquaforest SDK

Aquaforest

Aquaforest SDK is a powerful toolset for processing PDFs including PDF content extraction, searchable PDF creation, OCR with standard (Aquaforest) engine, OCR with extended (Canon IRIS) engine, and handwriting OCR options via Google and Microsoft APIs. Advanced PDF and barcode toolkit, high performance with support for up to 64 cores. The SDK is able to analyze PDF documents and automatically extract name/value pairs. The SDK has a wide variety of PDF manipulation capabilities including PDF merging, PDF attachment processing, PDF content extraction, XMP metadata processing, PDF/A validation, and more. The standard OCR engine supports 23 languages and is included in every edition of the SDK. This provides an interface to Google and Microsoft’s cloud OCR services which can be especially useful for special cases such as handwriting recognition. The SDK is able to read and recognize most standard barcode types.

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Testwell CTC++

Testwell

Testwell CTC++ is a powerful instrumentation-based code coverage and dynamic analysis tool for C and C++ code. With certain add-on components CTC++ can be used also on C#, Java and Objective-C code. Further, again with certain add-on components, CTC++ can be used to analyse code basically at any embedded target machines, also in very small ones (limited memory, no operating system). CTC++ provides Line Coverage, Statement Coverage, Function Coverage, Decision Coverage, Multicondition Coverage, Modified Condition/Decision Coverage (MC/DC), Condition Coverage. As a dynamic analysis tool, CTC++ shows the execution counters (how many times executed) in the code, i.e. more than a plain executed/not executed information. You can also use CTC++ to measure function execution costs (normally time) and to enable function entry/exit tracing at test time. CTC++ is easy to use.

Starting Price: Free

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JetBrains Fleet

JetBrains

Built from scratch, based on 20 years of experience developing IDEs. JetBrains Fleet uses the IntelliJ code-processing engine, with a distributed IDE architecture and a reimagined UI. We built Fleet to be a fast and lightweight text editor for when you need to quickly browse and edit your code. It starts up in an instant so you can begin working immediately, and it can easily transform into an IDE, with the IntelliJ code-processing engine running separately from the editor itself. Fleet inherits the things that developers love the most from IntelliJ-based IDEs – project and context aware code completion, navigation to definitions and usages, on-the-fly code quality checks, and quick-fixes. Fleet’s architecture is designed to support a range of configurations and workflows. You can simply run Fleet just on your machine, or move some of the processes elsewhere – for example by locating the code processing in the cloud.

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{CodeStore}

{CodeStore} is a free code snippet manager that makes it easy for programmers to store, find, and share code examples. It offers a variety of features, such as syntax highlighting, tagging, and full-text search. With {CodeStore}, finding the code snippet you are looking for is just a matter of seconds. Without the need of searching through your entire codebase, blogs, and forums. By synchronizing with the cloud, you always have access to all your code examples. You can also share them with others to make working on collaborative projects even more efficient. That makes {CodeStore} the perfect code snippet manager for programming beginners and professionals. Use the full-text search to find a specific code snippet. Further refine your search by filtering by programming language, tags, and more. Store your code snippets in the cloud to use them across multiple devices. You can also access them via a web browser whenever needed.

Starting Price: €10 per year

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Orkes

Scale your distributed applications, modernize your workflows for durability, and protect against software failures and downtimes with Orkes, the leading orchestration platform for developers. Build distributed systems that span across microservices, serverless, AI models, event-driven architectures and more - in any language, any framework. Your innovation, your code, your app - designed, developed, and delighting users a magnitude order faster. Orkes Conductor is the fastest way to build and modernize all your applications. Model your business logic as intuitively as you would in a whiteboard, code the components in the language and framework of your choice, run them at scale with no additional setups and observe across your distributed landscape - with enterprise-grade security and manageability baked-in.

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Wisej.NET

Ice Tea Group

Wisej.NET provides a platform and set of tools designed to ease the burden of developing, testing, deploying, and maintaining complex AI-powered business software. It bridges the gap between traditional WinForms-style desktop applications and the web by empowering developers to leverage their existing .NET and C# or VB.NET) skills. Developers are able to use the tools they are familiar with, like a pixel-perfect design surface and drag-and-drop controls with the languages they are comfortable with (C# or VB.NET) to build real-time web applications without having to learn HTML, CSS, or JavaScript. They can stay in their favorite IDE like Visual Studio to take advantage of features like IntelliSense, integrated debugging, design surfaces and source control integration. Front-end developers can leverage their knowledge of web technologies to augment applications and seamlessly integrate third-party packages like HTML5 charting libraries and ASP.NET controls.

Starting Price: $990

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CodeArts

Huawei Cloud

This software development pipeline builds on Huawei's years of R&D best practices at one stop. These practices are secure and trustworthy across the full process and can facilitate efficiency increase and digital transformation. Huawei's many years of R&D practices, cutting-edge R&D concepts, and leading R&D engineering capabilities. More than 10 out-of-the-box sub-services for the full lifecycle of software development. 20 mainstream languages, frameworks, and environments for seamless application migration to the cloud. Builds in R&D security capabilities, over 3000 code check rules, and support for top 10 languages. Full-lifecycle one-stop CodeArts makes development simpler and more efficient with better quality. Provides agile and efficient development collaboration services, document management, knowledge collaboration, online collaboration, and dashboard report customization for software development teams.

Starting Price: $6 per month

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Mimrr

Automate your code documentation & get fixes to code bugs, performance & security issues. Simply connect your repo to Mimrr and leave the magic of generating contextual documentation to us. Proactively analyzes every change to effortlessly find and suggest fixes to your code quality issues. Experience efficiency with our shared resources. We manage the hosting, you reap the benefits. Integrate our model directly into your infrastructure. Host your docs publicly so that end users can use your APIs or host privately for your own team. Seamlessly organize and view multiple projects within the same dashboard. Our semantic code chat helps you get better results from your codebase, making it easier to onboard, and understand complex code. Spot on code interaction with natural language prompts. New hires can be added easily from within the Mimrr web app, from user management under your organization's dashboard.

Starting Price: $15 per month

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Best Application Development Software for C# - Page 4

Compare the Top Application Development Software that integrates with C# as of November 2025 - Page 4

Void Editor

GrowthBook

Codacy

Black Duck

Arachnophilia

Meya

Qwiet AI

Sparrow SAST

Typora

Klocwork

VSCodium

NVU

DroidEdit

SonarQube for IDE

CodeRush

Coco Code Coverage

Phylum

CodeFactor

Sider Scan

WEBDEV

WINDEV

IMSL

Aquaforest SDK

Testwell CTC++

JetBrains Fleet

{CodeStore}

Orkes

Wisej.NET

CodeArts

Mimrr

Best Application Development Software for C# - Page 4

Compare the Top Application Development Software that integrates with C# as of November 2025 - Page 4

Void Editor

GrowthBook

Codacy

Black Duck

Arachnophilia

Meya

Qwiet AI

Sparrow SAST

Typora

Klocwork

VSCodium

NVU

DroidEdit

SonarQube for IDE

CodeRush

Coco Code Coverage

Phylum

CodeFactor

Sider Scan

WEBDEV

WINDEV

IMSL

Aquaforest SDK

Testwell CTC++

JetBrains Fleet

{CodeStore}

Orkes

Wisej.NET

CodeArts

Mimrr

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