C#

The Best C# Static Analysis Tools (Linters/Formatters)

We rank 70 C# linters, code analyzers, formatters, and more. Find and compare tools like Mega-Linter, Semgrep, Teamscale, and more. Please rate and review tools that you've used. This helps others find the best tools for their projects.

13 C# Tools

code-cracker

An analyzer library for C# and VB that uses Roslyn to produce refactorings, code analysis, and other niceties.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

NDepend

Measure, query and visualize your code and avoid unexpected issues, technical debt and complexity.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

ArchUnitNET

A C# architecture test library to specify and assert architecture rules in C# for automated testing.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

Designite

Designite supports detection of various architecture, design, and implementation smells, computation of various code quality metrics, and trend analysis.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

Gendarme

Gendarme inspects programs and libraries that contain code in ECMA CIL format (Mono and .NET).

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedformatter
  • 0% upvoted

Meziantou.Analyzer

A Roslyn analyzer to enforce some good practices in C# in terms of design, usage, security, performance, and style.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

.NET Analyzers

An organization for the development of analyzers (diagnostics and code fixes) using the .NET Compiler Platform.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

Puma Scan

Puma Scan provides real time secure code analysis for common vulnerabilities (XSS, SQLi, CSRF, LDAPi, crypto, deserialization, etc.) as development teams write code in Visual Studio.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedide-plugin
  • Maintainedlinter
  • 0% upvoted

Roslynator

A collection of 190+ analyzers and 190+ refactorings for C#, powered by Roslyn.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

SonarAnalyzer.CSharp

These Roslyn analyzers allow you to produce Clean Code that is safe, reliable, and maintainable by helping you find and correct bugs, vulnerabilities, and code smells in your codebase.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

VSDiagnostics

A collection of static analyzers based on Roslyn that integrates with VS.

  • DeprecatedDeprecated
  • DeprecatedCsharp
  • Deprecatedcli
  • Deprecatedlinter
  • 0% upvoted

Wintellect.Analyzers

.NET Compiler Platform ("Roslyn") diagnostic analyzers and code fixes.

  • MaintainedMaintained
  • MaintainedCsharp
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

CSharpEssentials

C# Essentials is a collection of Roslyn diagnostic analyzers, code fixes and refactorings that make it easy to work with C# 6 language features.

  • DeprecatedDeprecated
  • DeprecatedCsharp
  • Deprecatedcli
  • Deprecatedlinter
  • 0% upvoted

57 Multi-Language Tools

Mega-Linter

Mega-Linter can handle any type of project thanks to its 70+ embedded Linters, its advanced reporting, runnable on any CI system or locally, with assisted installation and configuration, able to apply formatting and fixes

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 68% upvoted

Semgrep

Sponsor

A fast, open-source, static analysis tool for finding bugs and enforcing code standards at editor, commit, and CI time. Its rules look like the code you already write; no abstract syntax trees or regex wrestling. Supports 17+ languages.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • Maintainedlinter
  • 82% upvoted

Teamscale

Static and dynamic analysis tool supporting more than 25 languages and direct IDE integration. Free hosting for Open Source projects available on request. Free academic licenses available.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedserviceMaintainedide-plugin
  • Maintainedlinter
  • 80% upvoted

SonarQube

SonarQube empowers development teams with a code quality and security solution that deeply integrates into your enterprise environment; enabling you to deploy clean code consistently and reliably. SonarQube provides a free and open source Community Edition.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 70% upvoted

Sonatype

Reports known vulnerabilities in common dependencies and recommends updated packages to minimize breaking changes

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 77% upvoted

PVS-Studio

A (conditionally free for FOSS and individual developers) static analysis of C, C++, C# and Java code. For advertising purposes you can propose a large FOSS project for analysis by PVS employees. Supports CWE mapping, OWASP ASVS, MISRA, AUTOSAR and SEI CERT coding standards.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 90% upvoted

CodeScene

Sponsor

CodeScene is a quality visualization tool for software. Prioritize technical debt, detect delivery risks, and measure organizational aspects. Fully automated.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 65% upvoted

Coverity

Synopsys Coverity supports 20 languages and over 70 frameworks including Ruby on rails, Scala, PHP, Python, JavaScript, TypeScript, Java, Fortran, C, C++, C#, VB.NET.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 65% upvoted

Better Code Hub

Better Code Hub checks your GitHub codebase against 10 engineering guidelines devised by the authority in software quality, Software Improvement Group.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 77% upvoted

Codacy

Code Analysis to ship Better Code, Faster.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 72% upvoted

codeql

Deep code analysis - semantic queries and dataflow for several languages with VSCode plugin support.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedserviceMaintainedide-plugin
  • Maintainedlinter
  • 85% upvoted

ReSharper

Extends Visual Studio with on-the-fly code inspections for C#, VB.NET, ASP.NET, JavaScript, TypeScript and other technologies.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

Checkmarx CxSAST

Commercial Static Code Analysis which doesn't require pre-compilation.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 56% upvoted

Roslyn Analyzers

Roslyn-based implementation of FxCop analyzers.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

Klocwork

Quality and Security Static analysis for C/C++, Java and C#.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 100% upvoted

Offensive 360

Sponsor

Commercial Static Code Analysis system doesn't require building the source code or pre-compilation.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 86% upvoted

Application Inspector

Commercial Static Code Analysis which generates exploits to verify vulnerabilities.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 75% upvoted

CodeSonar from GrammaTech

Advanced, whole program, deep path, static analysis of C, C++, Java and C# with easy-to-understand explanations and code and path visualization.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 70% upvoted

Atom-Beautify

Beautify HTML, CSS, JavaScript, PHP, Python, Ruby, Java, C, C++, C#, Objective-C, CoffeeScript, TypeScript, Coldfusion, SQL, and more in Atom editor.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedide-plugin
  • Deprecatedlinter
  • 64% upvoted

Svace

Static code analysis tool for Java,C,C++,C#,Go.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

TencentCodeAnalysis

Tencent Cloud Code Analysis (TCA for short, code-named CodeDog inside the company early) is a comprehensive platform for code analysis and issue tracking. TCA consist of three components, server, web and client. It integrates of a number of self-developed tools, and also supports dynamic integration of code analysis tools in various programming languages.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • Maintainedlinter
  • 100% upvoted

lizard

Lizard is an extensible Cyclomatic Complexity Analyzer for many programming languages including C/C++ (doesn't require all the header files or Java imports). It also does copy-paste detection (code clone detection/code duplicate detection) and many other forms of static code analysis. Counts lines of code without comments, CCN (cyclomatic complexity number), token count of functions, parameter count of functions.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

parasoft

Automated Software Testing Solutions for unit-, API-, and web UI testing. Complies with MISRA, OWASP, and others.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 100% upvoted

Synopsys

A commercial static analysis platform that allows for scanning of multiple languages (C/C++, Android, C#, Java, JS, PHP, Python, Node.JS, Ruby, Fortran, and Swift).

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 75% upvoted

todocheck

Linter for integrating annotated TODOs with your issue trackers

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 67% upvoted

Betterscan CE

Checks your code and infra (various Git repositories supported, cloud stacks, CLI, Web Interface platform, integrationss available) for security and quality issues. Code Scanning/SAST/Linting using many tools/Scanners deduplicated with One Report (AI optional).

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

Fortify

A commercial static analysis platform that supports the scanning of C/C++, C#, VB.NET, VB6, ABAP/BSP, ActionScript, Apex, ASP.NET, Classic ASP, VB Script, Cobol, ColdFusion, HTML, Java, JS, JSP, MXML/Flex, Objective-C, PHP, PL/SQL, T-SQL, Python (2.6, 2.7), Ruby (1.9.3), Swift, Scala, VB, and XML.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedide-plugin
  • Maintainedlinter
  • 51% upvoted

pfff

Facebook's tools for code analysis, visualizations, or style-preserving source transformation for many languages.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedformatter
  • 60% upvoted

Security Code Scan

Security code analyzer for C# and VB.NET. Detects various security vulnerability patterns: SQLi, XSS, CSRF, XXE, Open Redirect, etc. Integrates into Visual Studio 2015 and newer. Detects various security vulnerability patterns: SQLi, XSS, CSRF, XXE, Open Redirect, etc.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedide-plugin
  • Maintainedlinter
  • 100% upvoted

Snyk Code

Snyk Code finds security vulnerabilities based on AI. Its speed of analysis allow us to analyse your code in real time and deliver results when you hit the save button in your IDE. Supported languages are Java, JavaScript, Python, PHP, C#, Go and TypeScript. Integrations with GitHub, BitBucket and Gitlab. It is free to try and part of the Snyk platform also covering SCA, containers and IaC.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 100% upvoted

SonarCloud

SonarCloud enables your team to deliver clean code consistently and efficiently with a code review tool that easily integrates into the cloud DevOps platforms and extend your CI/CD workflow. SonarCloud is free for open source projects.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 56% upvoted

Soto Platform

Suite of static analysis tools consisting of the three components Sotoarc (Architecture Analysis), Sotograph (Quality Analysis), and Sotoreport (Quality report). Helps find differences between architecture and implementation, interface violations (e.g. external access of private parts of subsystems, detection of all classes, files, packages and subsystems which are strongly coupled by cyclical relationships and more. The Sotograph product family runs on Windows and Linux.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

WhiteHat Application Security Platform

WhiteHat Scout (for Developers) combined with WhiteHat Sentinel Source (for Operations) supporting WhiteHat Top 40 and OWASP Top 10.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

ApplicationInspector

Creates reports of over 400 rule patterns for feature detection (e.g. the use of cryptography or version control in apps).

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

autocorrect

A linter and formatter to help you to improve copywriting, correct spaces, words, punctuations between CJK (Chinese, Japanese, Korean).

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • MaintainedlinterMaintainedformatter
  • 0% upvoted

CAST Highlight

Commercial Static Code Analysis which runs locally, but uploads the results to its cloud for presentation.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

CodeFactor

Automated Code Analysis for repos on GitHub or BitBucket.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 50% upvoted

CodeIt.Right

CodeIt.Right™ provides a fast, automated way to ensure that your source code adheres to (your) predefined design and style guidelines as well as best coding practices.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

CodePatrol

Automated SAST code reviews driven by security, supports 15+ languages and includes security training.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 0% upvoted

CodeRush

Code creation, debugging, navigation, refactoring, analysis and visualization tools that use the Roslyn engine in Visual Studio 2015 and up.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

dotenet-format

A code formatter for .NET. Preferences will be read from an .editorconfig file, if present, otherwise a default set of preferences will be used. At this time dotnet-format is able to format C# and Visual Basic projects with a subset of supported .editorconfig options.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

Mobb

Mobb is a trusted, automatic vulnerability fixer that secures applications, reduces security backlogs, and frees developers to focus on innovation. Mobb is free for open-source projects.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • MaintainedlinterMaintainedformatter
  • 0% upvoted

OpenStaticAnalyzer

OpenStaticAnalyzer is a source code analyzer tool, which can perform deep static analysis of the source code of complex systems.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

PT.PM

An engine for searching patterns in the source code, based on Unified AST or UST. At present time C#, Java, PHP, PL/SQL, T-SQL, and JavaScript are supported. Patterns can be described within the code or using a DSL.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedlinter
  • 0% upvoted

Qwiet AI

Identify vulnerabilities that are unique to your code base before they reach production. Leverages the Code Property Graph (CPG) to run its analyses concurrently in a single graph of graphs. Automatically finds business logic flaws in dev like hardcoded secrets and logic bombs

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 0% upvoted

Refactoring Essentials

The free Visual Studio 2015 extension for C# and VB.NET refactorings, including code best practice analyzers.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedlinter
  • 0% upvoted

Roslyn Security Guard

Project that focuses on the identification of potential vulnerabilities such as SQL injection, cross-site scripting (XSS), CSRF, cryptography weaknesses, hardcoded passwords and many more.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

Sigrid

Sigrid helps you to improve your software by measuring your system's code quality, and then compares the results against a benchmark of thousands of industry systems to give you concrete advice on areas where you can improve.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • Maintainedlinter
  • 50% upvoted

SourceMeter

Static Code Analysis for C/C++, Java, C#, Python, and RPG III and RPG IV versions (including free-form).

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

StaticReviewer

Static Reviewer executes code checks according to the most relevant Secure Coding Standards, OWASP, CWE, CVE, CVSS, MISRA, CERT, for 40+ programming languages, using 1000+ built-in validation rules for Security, Deadcode & Best Practices Available a module for Software Composition Analysis (SCA) to find vulnerabilities in open source and third party libraries.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

TscanCode

A fast and accurate static analysis solution for C/C++, C#, Lua codes provided by Tencent. Using GPLv3 license.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

graudit

Grep rough audit - source code auditing tool.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 40% upvoted

HCL AppScan Source

Commercial Static Code Analysis.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 44% upvoted

SonarLint

SonarLint is a free IDE extension available for IntelliJ, VS Code, Visual Studio, and Eclipse, to find and fix coding issues in real-time, flagging issues as you code, just like a spell-checker. More than a linter, it also delivers rich contextual guidance to help developers understand why there is an issue, assess the risk, and educate them on how to fix it.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

LGTM

Find security vulnerabilities, variants, and critical code quality issues using CodeQL queries over source code. Automatic PR code review; free for open source. Formerly semmle. It supports public Git repositories hosted on Bitbucket Cloud, GitHub.com, GitLab.com.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 0% upvoted

Understand

Code visualization tool that provides code analysis, standards testing, metrics, graphing, dependency analysis and more for Ada, VHDL, and others.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 45% upvoted

Embold

Intelligent software analytics platform that identifies design issues, code issues, duplication and metrics. Supports Java, C, C++, C#, JavaScript, TypeScript, Python, Go, Kotlin and more.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 13% upvoted

Frequently Asked Questions

What are C# tools?

C# (pronounced see sharp, like the musical note C♯, but written with the number sign) is a general-purpose, multi-paradigm programming language encompassing strong typing, lexically scoped, imperative, declarative, functional, generic, object-oriented (class-based), and component-oriented programming disciplines. It was developed around 2000 by Microsoft as part of its .NET initiative and later approved as an international standard by Ecma (ECMA-334) in 2002 and ISO (ISO/IEC 23270) in 2003.

What are the best C# static analysis tools and linters?

The most popular C# tools ranked by user votes are: Mega-Linter, Semgrep, Teamscale, SonarQube, Sonatype.

Which C# tools are free to use?

Tools with a free plan include Better Code Hub, OpenStaticAnalyzer, SourceMeter, Embold. On top of that, there are also a number of open source like Mega-Linter, Semgrep, SonarQube, Sonatype, Roslyn Analyzers, Atom-Beautify, TencentCodeAnalysis, lizard, todocheck, Betterscan CE.

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