How to install and configure Roslyn Analyzers in a .NET Core project?

You can add the Microsoft.CodeAnalysis.NetAnalyzers NuGet package or enable it via the .NET SDK; check the dotnet/sdk repository for updated instructions since consolidation.

What's the difference between Roslyn Analyzers and the old FxCop?

Roslyn Analyzers is built on the modern .NET Compiler Platform for faster, integrated analysis during development, whereas FxCop was a standalone, slower tool with less IDE support.

Should I use Roslyn Analyzers or SonarQube for .NET code analysis?

Roslyn Analyzers is better for real-time, IDE-integrated feedback during coding, while SonarQube excels at centralized reporting and historical tracking in CI/CD; many teams use both for complementary coverage.

Can I disable specific analyzers in Roslyn Analyzers?

Yes, you can configure or disable individual analyzers via ruleset files or editorconfig settings in your project, allowing customization based on team standards.

How do Roslyn Analyzers integrate with CI/CD pipelines?

They run as part of the build process using MSBuild or dotnet CLI, generating warnings or errors that can break the build, ensuring code quality checks in automation.

Are Roslyn Analyzers compatible with .NET 5 and above?

Yes, they are designed to work with modern .NET versions, but always verify package compatibility and update to the latest SDK for best support.

Roslyn Analyzers — Roslyn Analyzers for .NET Code Quality

What is Roslyn Analyzers?

Roslyn Analyzers is a collection of static code analyzers built on the .NET Compiler Platform (Roslyn) that enforces coding standards, security practices, and maintainability guidelines for .NET applications. It replaces the legacy FxCop tool by providing integrated, real-time analysis during development to catch issues early.

Target Audience

.NET developers and teams who want to improve code quality, security, and maintainability in their C# and Visual Basic projects through automated static analysis.

Value Proposition

Developers choose Roslyn Analyzers because it offers modern, open-source, and performant code analysis that integrates directly into the .NET development workflow, replacing the older FxCop with better tooling support and faster feedback loops.

Overview

This project provides a collection of Roslyn-based code analyzers that enforce .NET coding standards, security practices, and maintainability guidelines. It serves as the modern, open-source replacement for the legacy FxCop static analysis tool, integrating seamlessly into the .NET development workflow.

Key Features

Code Quality Analyzers — Detect potential bugs, performance issues, and maintainability problems in .NET code.
Security Analyzers — Identify security vulnerabilities and enforce security best practices.
Design Guidelines — Enforce .NET Framework Design Guidelines for consistent API design.
Roslyn Integration — Built on the .NET Compiler Platform (Roslyn) for fast, in-process analysis during development.
Legacy FxCop Replacement — Provides a modern, open-source alternative to the older FxCop tool with better integration and performance.

Philosophy

The project aims to make code analysis an integral part of the development process by providing fast, accurate, and actionable diagnostics that help developers write better .NET code from the start.

Roslyn Analyzers

What is Roslyn Analyzers?

Overview

Key Features

Philosophy

Related Projects

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Use Cases

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Pros & Cons

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Open Source Alternative To

Frequently Asked Questions