Best AI IDEs for C#

JetBrains Junie is an innovative AI coding assistant that works inside many JetBrains IDEs to streamline programming efforts and boost efficiency. This agent leverages advanced AI to help developers write, test, and inspect code without leaving their familiar development environment. Junie offers both code execution and interactive collaboration, allowing programmers to switch between automated code writing and brainstorming sessions for features and improvements. By deeply understanding the codebase, Junie identifies the best ways to tackle tasks and ensures all changes meet quality standards through syntax and semantic checks. It also runs tests to minimize errors and keep the project healthy, freeing developers from routine tasks. Many developers have successfully built complex applications and games using Junie, highlighting its flexibility across different languages and frameworks. The AI adapts to each task’s complexity and workflow, making coding less tedious and more focused on creativity. Whether you are building a simple web app or a complex game, Junie offers smart support throughout the development cycle.

Windsurf is a cutting-edge IDE designed for developers to maintain focus and productivity through AI-driven assistance. At the heart of the platform is Cascade, an intelligent agent that not only fixes bugs and errors but also anticipates potential issues before they arise. With built-in features for real-time code previews, automatic linting, and seamless integrations with popular tools like GitHub and Slack, Windsurf streamlines the development process. Developers can also benefit from memory tracking, which helps Cascade recall past work, and smart suggestions that enhance code optimization. Windsurf’s unique capabilities ensure that developers can work faster and smarter, reducing onboarding time and accelerating project delivery.

Utilize our complimentary, collaborative IDE that operates in your browser to write code in over 50 programming languages—no setup time required. Begin coding in your preferred language across any device, operating system, or platform. You can easily invite friends, team members, and colleagues to collaborate in real-time, similar to Google Docs editing. Seamlessly import, execute, and work together on countless GitHub repositories without any manual configurations. Whether you’re interested in Python, C++, HTML, or CSS, our platform allows you to learn and code in whatever language you choose, all in one place. The moment you create a new repl, it becomes live and shareable instantly with others around the globe. Join a community of over 3 million enthusiastic programmers, technologists, creatives, and learners eager to enhance their coding skills. Boost your team's efficiency with dynamic documentation, real-time collaboration features, and effortless remote interviewing options. Additionally, you can build applications programmatically, develop bots, and tailor the IDE with plugins to meet your specific requirements, ensuring a personalized coding experience. This all-in-one platform is designed to make coding more accessible and engaging for everyone.

Visual Studio by Microsoft is a complete ecosystem for professional developers, combining robust coding environments, integrated AI capabilities, and advanced collaboration tools. The flagship Visual Studio 2022 IDE delivers an all-in-one workspace with compilers, debuggers, designers, and performance profilers for .NET, C++, C#, and Azure development. Meanwhile, Visual Studio Code (VS Code) offers a lightweight yet powerful editor that runs on Windows, macOS, and Linux, ideal for web, JavaScript, Python, and container-based workflows. With GitHub Copilot integration, developers receive intelligent code completions, automated refactoring, and natural language explanations of complex logic. Agent Mode introduces an AI-driven assistant that can edit across files, execute builds, and resolve compile or test errors autonomously. Built-in tools like unit test generators, CI-aware policy enforcement, and style validation help ensure clean, testable, and secure code. Thousands of extensions from the Visual Studio Marketplace expand functionality for database, cloud, and DevOps workflows. Together, these platforms redefine productivity, helping teams code smarter and deliver innovation faster.

Kiro is an advanced integrated development environment powered by artificial intelligence, designed to streamline AI-driven programming by transforming natural-language instructions into structured requirements, system architectures, and specific implementation tasks that undergo thorough testing. Created specifically for autonomous workflows, it offers features such as specification-based development, multimodal communication, and "agent hooks" that activate background tasks during events like file saving, alongside an autopilot mode that takes charge of executing lengthy scripts while keeping the user engaged. By effectively managing context, Kiro minimizes repetitive tasks and simplifies the integration of complex functionalities within extensive codebases. Its built-in integrations with MCP allow seamless connections to documentation, databases, and APIs, and users can influence the development process using visual aids like UI designs or architecture blueprints. With a strong focus on enterprise-level security and privacy, Kiro guarantees safe deployment, while compatibility with Claude Sonnet models, Open VSX plugins, and existing VS Code configurations ensures an intuitive and AI-enhanced experience. Additionally, the platform continuously evolves, adapting to user feedback and emerging technologies to maintain its position at the forefront of software development tools.

JetBrains Rider is a robust and efficient cross-platform IDE for .NET development, allowing users to create applications for .NET, ASP.NET, .NET Core, Xamarin, and Unity across Windows, Mac, and Linux operating systems. Built on the IntelliJ platform and enhanced by ReSharper, Rider offers compatibility with .NET Framework, cross-platform .NET Core, and Mono projects. This versatility enables developers to build a diverse array of applications, from desktop software and web services to Unity games and mobile apps. Rider boasts over 2200 live code inspections along with numerous context actions and refactorings, seamlessly integrating ReSharper's capabilities with the comprehensive features of the IntelliJ platform. With its extensive functionality, Rider maintains a focus on speed and responsiveness, ensuring a smooth development experience. Additionally, it supports running and debugging across various runtimes while being fully operational on multiple operating systems. Moreover, Rider incorporates more than 60 refactorings from ReSharper and offers a wide selection of over 450 context actions, enhancing productivity further.

Void is a fork of VS Code that serves as an open-source AI code editor and an alternative to Cursor, designed to give developers enhanced AI support while ensuring complete data control. It facilitates smooth integration with various large language models, including DeepSeek, Llama, Qwen, Gemini, Claude, and Grok, allowing direct connections without relying on a private backend. Among its core functionalities are tab-triggered autocomplete, an inline quick edit feature, and a dynamic AI chat interface that supports standard chat, a restricted gather mode for read/search-only tasks, and an agent mode that automates operations involving files, folders, terminal commands, and MCP tools. Furthermore, Void provides exceptional performance capabilities, including rapid file application for documents containing thousands of lines, comprehensive checkpoint management for model updates, native tool execution, and the detection of lint errors. Developers can effortlessly migrate their themes, keybindings, and settings from VS Code with a single click and choose to host models either locally or in the cloud. This unique combination of features makes Void an attractive option for developers seeking powerful coding tools while maintaining data sovereignty.

Qoder is a sophisticated coding platform designed specifically for genuine software development, surpassing standard code completion by integrating advanced context engineering with intelligent AI agents that possess a profound understanding of your project. It enables developers to assign intricate, asynchronous tasks via its Quest Mode, wherein agents operate independently to provide complete results, while also allowing for enhanced functionality through Model Context Protocol (MCP) integrations that connect with various external tools and services. Additionally, Qoder’s Memory system captures coding style, project-specific insights, and reusable context to guarantee consistent, project-aware outputs throughout the development process. Developers can engage in chat for advice or code recommendations, maintain a Repo Wiki for consolidating knowledge, and exercise control over behavior through Rules to ensure that AI-generated work remains secure and guided. This combination of context-sensitive automation, agent delegation, and customizable AI behavior not only empowers teams to think more critically and code more effectively but also fosters an environment where innovation and collaboration can thrive. Through these features, Qoder revolutionizes the coding experience, making it more efficient and aligned with the specific needs of each project.

Developed entirely from the ground up, JetBrains Fleet draws on two decades of experience in creating integrated development environments (IDEs). It utilizes the robust IntelliJ code-processing engine, featuring a distributed architecture and a fresh user interface designed for modern developers. Our aim with Fleet was to create a swift and efficient text editor that allows for quick code browsing and editing. It launches almost instantaneously, enabling you to start your work without delay, and has the capability to seamlessly evolve into a full-fledged IDE, with the IntelliJ engine operating independently from the editing interface. Fleet encompasses all the beloved features of IntelliJ-based IDEs, such as code completion tailored to your project context, easy navigation to definitions and usages, real-time code quality assessments, and convenient quick-fixes. The architecture of Fleet is thoughtfully designed to accommodate various configurations and workflows, allowing it to run locally on your machine or to offload some processes to the cloud, showcasing its versatility and adaptability for different development needs. This flexibility ensures that developers can choose the setup that best fits their workflow requirements.