Static program analysis is the analysis of computer software that is performed without actually executing programs — Wikipedia

This is a collection of static analysis tools and code quality checkers. Pull requests are very welcome!
Note: ©️ stands for proprietary software. All other tools are Open Source.

Programming Languages

Ada

Codepeer - detects run-time and logic errors
Polyspace for Ada ©️ - provide code verification that proves the absence of overflow, divide-by-zero, out-of-bounds array access, and certain other run-time errors in source code.
Understand ©️ - IDE that provides code analysis, standards testing, metrics, graphing, dependency analysis and more for Ada and VHDL.

Awk

gawk --lint - warns about constructs that are dubious or nonportable to other awk implementations.

C/C++

clang-tidy - clang static analyser
CMetrics - Measures size and complexity for C files
CodeSonar from GrammaTech ©️ - Advanced, whole program, deep path, static analysis of C and C++ with easy-to-understand explanations and code and path visualization.
Corrode - Semi-automatic translation from C to Rust. Could reveal bugs in the original implementation by showing Rust compiler warnings and errors.
cppcheck - static analysis of C/C++ code
cpplint - automated C++ checker that follows Google's style guide
cqmetrics - quality metrics for C code
CScout - complexity and quality metrics for for C and C preprocessor code
flawfinder - finds possible security weaknesses
flint++ - cross-platform, zero-dependency port of flint, a lint program for C++ developed and used at Facebook.
Frama-C - a sound and extensible static analyzer for C code
oclint - static analysis of C/C++ code
Polyspace Bug Finder ©️ - identifies run-time errors, concurrency issues, security vulnerabilities, and other defects in C and C++ embedded software.
Polyspace Code Prover ©️ - provide code verification that proves the absence of overflow, divide-by-zero, out-of-bounds array access, and certain other run-time errors in C and C++ source code.
scan-build - Analyzes C/C++ code using LLVM at compile-time
splint - Annotation-assisted static program checker
tis-interpreter - An interpreter for finding subtle bugs in programs written in standard C
vera++ - Vera++ is a programmable tool for verification, analysis and transformation of C++ source code.

C#

.NET Analyzers - An organization for the development of analyzers (diagnostics and code fixes) using the .NET Compiler Platform.
Code Analysis Rule Collection - Contains a set of diagnostics, code fixes and refactorings built on the Microsoft .NET Compiler Platform "Roslyn".
code-cracker - An analyzer library for C# and VB that uses Roslyn to produce refactorings, code analysis, and other niceties.
CodeRush ©️ - Code creation, debugging, navigation, refactoring, analysis and visualization tools that use the Roslyn engine in Visual Studio 2015 and up.
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.
Designite ©️ - Designite is a software design quality assessment tool. It supports detection of implementation and design smells, computation of various code quality metrics, and trend analysis.
Gendarme - Gendarme inspects programs and libraries that contain code in ECMA CIL format (Mono and .NET).
NDepend ©️ - Measure, query and visualize your code and avoid unexpected issues, technical debt and complexity.
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.
Refactoring Essentials - The free Visual Studio 2015 extension for C# and VB.NET refactorings, including code best practice analyzers.
ReSharper ©️ - Extends Visual Studio with on-the-fly code inspections for C#, VB.NET, ASP.NET, JavaScript, TypeScript and other technologies.
Roslyn Security Guard - Project that focus on the identification of potential vulnerabilities such as SQL injection, cross-site scripting (XSS), CSRF, cryptography weaknesses, hardcoded passwords and many more.
Roslynator - A collection of 190+ analyzers and 190+ refactorings for C#, powered by Roslyn.
Security Code Scan - Security code analyzer for C# and VB.NET. Detects various security vulnerability patterns: SQLi, XSS, CSRF, XXE, Open Redirect, etc.
SonarLint for Visual Studio - SonarLint is an extension for Visual Studio 2015 and 2017 that provides on-the-fly feedback to developers on new bugs and quality issues injected into .NET code.
VSDiagnostics - A collection of static analyzers based on Roslyn that integrate with VS.
Wintellect.Analyzers - .NET Compiler Platform ("Roslyn") diagnostic analyzers and code fixes.

Crystal

ameba - A static code analysis tool for Crystal
crystal - The Crystal compiler has built-in linting functionality.

Elixir

credo - A static code analysis tool with a focus on code consistency and teaching.
Dogma - A code style enforcer for Elixir
sobelow - Security-focused static analysis for the Phoenix Framework

Erlang

elvis - Erlang Style Reviewer

Go

deadcode - Finds unused code.
dingo-hunter - Static analyser for finding deadlocks in Go.
dupl - Reports potentially duplicated code.
errcheck - Check that error return values are used.
flen - Get info on length of functions in a Go package.
gas - Inspects source code for security problems by scanning the Go AST.
Go Meta Linter - Concurrently run Go lint tools and normalise their output.
go tool vet --shadow - Reports variables that may have been unintentionally shadowed.
go vet - Examines Go source code and reports suspicious.
go-staticcheck - go vet on steroids, similar to ReSharper for C#.
go/ast - Package ast declares the types used to represent syntax trees for Go packages.
goconst - Finds repeated strings that could be replaced by a constant.
gocyclo - Calculate cyclomatic complexities of functions in Go source code.
gofmt -s - Checks if the code is properly formatted and could not be further simplified.
goimports - Checks missing or unreferenced package imports.
golint - Prints out coding style mistakes in Go source code.
goreporter - concurrently runs many linters and normalises their output to a report.
goroutine-inspect - An interactive tool to analyze Golang goroutine dump.
gosimple - Report simplifications in code.
gotype - Syntactic and semantic analysis similar to the Go compiler.
ineffassign - Detect ineffectual assignments in Go code
interfacer - Suggest narrower interfaces that can be used.
lll - Report long lines.
maligned - Detect structs that would take less memory if their fields were sorted.
megacheck - Run staticcheck, gosimple and unused, sharing work.
misspell - Finds commonly misspelled English words.
nakedret - Finds naked returns.
prealloc - Finds slice declarations that could potentially be preallocated.
safesql - Static analysis tool for Golang that protects against SQL injections.
structcheck - Find unused struct fields.
test - Show location of test failures from the stdlib testing module.
testify - Show location of failed testify assertions.
unconvert - Detect redundant type conversions.
unimport - Finds unnecessary import aliases
unparam - Find unused function parameters.
unused - Find unused variables.
varcheck - Find unused global variables and constants.

Groovy

CodeNarc - a static analysis tool for Groovy source code, enabling monitoring and enforcement of many coding standards and best practices

Haskell

HLint - HLint is a tool for suggesting possible improvements to Haskell code.

Haxe

Haxe Checkstyle - A static analysis tool to help developers write Haxe code that adheres to a coding standard.

Java

Checker Framework - Pluggable type-checking for Java http://checkerframework.org/
checkstyle - checking Java source code for adherence to a Code Standard or set of validation rules (best practices)
ckjm - calculates Chidamber and Kemerer object-oriented metrics by processing the bytecode of compiled Java files
Error-prone - Catch common Java mistakes as compile-time errors
fb-contrib - A plugin for FindBugs with additional bug detectors
Find Security Bugs - IDE/SonarQube plugin for security audits of Java web applications.
Findbugs - FindBugs is a program to find bugs in Java programs. It looks for patterns are likely to be errors.
Hopper - A static analysis tool written in scala for languages that run on JVM
HuntBugs - Bytecode static analyzer tool based on Procyon Compiler Tools aimed to supersede FindBugs.
NullAway - Type-based null-pointer checker with low build-time overhead; an Error Prone plugin
OWASP Dependency Check - Checks dependencies for known, publicly disclosed, vulnerabilities.
Spoon - Library to write your own static analyses and architectural rule checkers for Java. Can be integrated in Maven and Gradle.
SpotBugs - SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.

JavaScript

aether - Lint, analyze, normalize, transform, sandbox, run, step through, and visualize user JavaScript, in node or the browser.
ClosureLinter - ensures that all of your project's JavaScript code follows the guidelines in the Google JavaScript Style Guide. It can also automatically fix many common errors
coffeelint - A style checker that helps keep CoffeeScript code clean and consistent.
complexity-report - Software complexity analysis for JavaScript projects
DeepScan ©️ - An analyzer for JavaScript which targets runtime errors and quality issues rather than coding conventions.
escomplex - Software complexity analysis of JavaScript-family abstract syntax trees.
eslint - A fully pluggable tool for identifying and reporting on patterns in JavaScript
Esprima - ECMAScript parsing infrastructure for multipurpose analysis
flow - A static type checker for JavaScript.
jshint - detect errors and potential problems in JavaScript code and enforce your team's coding conventions
JSLint ©️ - The JavaScript Code Quality Tool
plato - Visualize JavaScript source complexity
Prettier - An opinionated code formatter.
quality - zero configuration code and module linting
standard - An npm module that checks for Javascript Styleguide issues
XO - Enforce strict code style. Never discuss code style on a pull request again!
yardstick - Javascript code metrics

Kotlin

detekt - Static code analysis for Kotlin code.
ktlint - An anti-bikeshedding Kotlin linter with built-in formatter

Lua

luacheck - A tool for linting and static analysis of Lua code.

MATLAB

mlint ©️ - Check MATLAB code files for possible problems.

Perl

Perl::Critic - Critique Perl source code for best-practices.

PHP

dephpend - Dependency analysis tool
deprecation-detector - Finds usages of deprecated (Symfony) code
deptrac - Enforce rules for dependencies between software layers.
DesignPatternDetector - detection of design patterns in PHP code
EasyCodingStandard - combine PHP_CodeSniffer and PHP-CS-Fixer
exakat - An automated code reviewing engine for PHP
GrumPHP - checks code on every commit
Mondrian - a set of static analysis and refactoring tools which use graph theory
parallel-lint - This tool checks syntax of PHP files faster than serial check with a fancier output.
Parse - A Static Security Scanner
pdepend - Calculates software metrics like cyclomatic complexity for PHP code.
phan - a modern static analyzer from etsy
PHP Assumptions - Checks for weak assumptions
PHP Coding Standards Fixer - Fixes your code according to standards like PSR-1, PSR-2, and the Symfony standard.
Php Inspections (EA Extended) - A Static Code Analyzer for PHP.
PHP Refactoring Browser - Refactoring helper
PHP Semantic Versioning Checker - Suggests a next version according to semantic versioning
PHP-Parser - A PHP parser written in PHP
PHP-Token-Reflection - Library emulating the PHP internal reflection
php7cc - PHP 7 Compatibility Checker
php7mar - assist developers in porting their code quickly to PHP 7
PHP_CodeSniffer - detects violations of a defined set of coding standards
phpca - Finds usage of non-built-in extensions
phpcf - Finds usage of deprecated PHP features
phpcpd - Copy/Paste Detector for PHP code.
phpdcd - Dead Code Detector (DCD) for PHP code.
PhpDependencyAnalysis - builds a dependency graph for a project
phpdoc-to-typehint - Add scalar type hints and return types to existing PHP projects using PHPDoc annotations
phpDocumentor - Analyzes PHP source code to generate documentation
PHPMD - finds possible bugs in your code
PhpMetrics - Calculates and visualizes various code quality metrics
phpmnd - Helps to detect magic numbers
PHPQA - A tool for running QA tools (phploc, phpcpd, phpcs, pdepend, phpmd, phpmetrics)
phpqa - PHPQA all-in-one Analyzer CLI tool
phpsa - Static analysis tool for PHP.
PHPStan - PHP Static Analysis Tool - discover bugs in your code without running it!
Progpilot - A static analysis tool for security purposes
Psalm - Static analysis tool for finding type errors in PHP applications
Qafoo Quality Analyzer - Visualizes metrics and source code
RIPS - A static source code analyser for vulnerabilities in PHP scripts
Tuli - A static analysis engine
twig-lint - twig-lint is a lint tool for your twig files.
WAP - Tool to detect and correct input validation vulnerabilities in PHP (4.0 or higher) web applications and predicts false positives by combining static analysis and data mining.

Python

bandit - a tool to find common security issues in Python code
jedi - autocompletion/static analysis library for Python
linty fresh - parse lint errors and report them to Github as comments on a pull request
mccabe - check McCabe complexity
mypy - an experimental optional static type checker for Python that aims to combine the benefits of dynamic (or "duck") typing and static typing, frequently used with MonkeyType
py-find-injection - find SQL injection vulnerabilities in Python code
pycodestyle - (formerly pep8) check Python code against some of the style conventions in PEP 8
pydocstyle - check compliance with Python docstring conventions
pyflakes - check Python source files for errors
pylint - looks for programming errors, helps enforcing a coding standard and sniffs for some code smells. It additionally includes pyreverse (an UML diagram generator) and symilar (a similarities checker).
pyroma - rate how well a Python project complies with the best practices of the Python packaging ecosystem, and list issues that could be improved
PyT - Python Taint - A static analysis tool for detecting security vulnerabilities in Python web applications.
vulture - find unused classes, functions and variables in Python code
xenon - monitor code complexity using radon

Python wrappers

ciocheck - linter, formatter and test suite helper. As a linter, it is a wrapper around pep8, pydocstyle, flake8, and pylint.
flake8 - a wrapper around pyflakes, pycodestyle and mccabe
prospector - a wrapper around pylint, pep8, mccabe and others

R

lintr ©️ - Static Code Analysis for R

Ruby

brakeman - A static analysis security vulnerability scanner for Ruby on Rails applications
cane - Code quality threshold checking as part of your build
dawnscanner - a static analysis security scanner for ruby written web applications. It supports Sinatra, Padrino and Ruby on Rails frameworks.
flay - Flay analyzes code for structural similarities.
flog - Flog reports the most tortured code in an easy to read pain report. The higher the score, the more pain the code is in.
laser - Static analysis and style linter for Ruby code.
pelusa - Static analysis Lint-type tool to improve your OO Ruby code
quality - Runs quality checks on your code using community tools, and makes sure your numbers don't get any worse over time.
reek - Code smell detector for Ruby
rubocop - A Ruby static code analyzer, based on the community Ruby style guide.
Rubrowser - Ruby classes interactive dependency graph generator.
ruby-lint - Static code analysis for Ruby
rubycritic - A Ruby code quality reporter
SandiMeter - Static analysis tool for checking Ruby code for Sandi Metz' rules.

Rust

clippy - a code linter to catch common mistakes and improve your Rust code
electrolysis - A tool for formally verifying Rust programs by transpiling them into definitions in the Lean theorem prover.
herbie - Adds warnings or errors to your crate when using a numerically unstable floating point expression.
linter-rust - Linting your Rust-files in Atom, using rustc and cargo
Rust Language Server - Supports functionality such as 'goto definition', symbol search, reformatting, and code completion, and enables renaming and refactorings.
rustfix - read and apply the suggestions made by rustc (and third-party lints, like those offered by clippy).

Scala

linter - Linter is a Scala static analysis compiler plugin which adds compile-time checks for various possible bugs, inefficiencies, and style problems.
Scalastyle - Scalastyle examines your Scala code and indicates potential problems with it.
scapegoat - Scala compiler plugin for static code analysis
WartRemover - a flexible Scala code linting tool.

Shell

shellcheck - ShellCheck, a static analysis tool that gives warnings and suggestions for bash/sh shell scripts

SQL

sqlcheck - Automatically identify anti-patterns in SQL queries
sqlint - Simple SQL linter

Swift

SwiftLint - A tool to enforce Swift style and conventions
Tailor - A static analysis and lint tool for source code written in Apple's Swift programming language.

TypeScript

Codelyzer - A set of tslint rules for static code analysis of Angular 2 TypeScript projects.
TSLint - An extensible linter for the TypeScript language.
tslint-microsoft-contrib - A set of tslint rules for static code analysis of TypeScript projects maintained by Microsoft.

Multiple languages

AppChecker ©️ - Static analysis for C/C++/C#, PHP and Java
Application Inspector ©️ - Combined SAST, DAST, IAST security scanner for C#, PHP, Java, SQL languages
APPscreener ©️ - Static code analysis for binary and source code - Java/Scala, PHP, Javascript, C#, PL/SQL, Python, T-SQL, C/C++, ObjectiveC/Swift, Visual Basic 6.0, Ruby, Delphi, ABAP, HTML5 and Solidity
Axivion Bauhaus Suite ©️ - Tracks down error-prone code locations, style violations, cloned or dead code, cyclic dependencies and more for C/C++, C#/.NET, Java and Ada 83/Ada 95
coala - Language independent framework for creating code analysis - supports over 60 languages by default
Cobra ©️ - Structural source code analyzer by NASA's Jet Propulsion Laboratory. Supports C, C++, Ada, and Python.
codeburner - Provides a unified interface to sort and act on the issues it finds
CodeFactor ©️ - Static Code Analysis for C#, C, C++, CoffeeScript, CSS, Groovy, GO, JAVA, JavaScript, Less, Python, Ruby, Scala, SCSS, TypeScript.
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. Supported languages: C#, VB.NET.
cqc - Check your code quality for js, jsx, vue, css, less, scss, sass and styl files.
DevSkim - Regex-based static analysis tool for Visual Studio, VS Code, and Sublime Text - C/C++, C#, PHP, ASP, Python, Ruby, Java, and others.
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.
graudit - Grep rough audit - source code auditing tool - C/C++, PHP, ASP, C#, Java, Perl, Python, Ruby
Hound CI - Comments on style violations in GitHub pull requests. Supports Coffeescript, Go, HAML, JavaScript, Ruby, SCSS and Swift.
imhotep - Comment on commits coming into your repository and check for syntactic errors and general lint warnings.
Infer - A static analyzer for Java, C and Objective-C
Klocwork ©️ - Quality and Security Static analysis for C/C++, Java and C#
oclint - A static source code analysis tool to improve quality and reduce defects for C, C++ and Objective-C
pfff - Facebook's tools for code analysis, visualizations, or style-preserving source transformation for many languages
PMD - A source code analyzer for Java, Javascript, PLSQL, XML, XSL and others
pre-commit - A framework for managing and maintaining multi-language pre-commit hooks.
PVS-Studio ©️ - a (conditionaly free for FOSS) static analysis of C/C++ and C# code. For advertising purposes you can propose a large FOSS project for analysis by PVS employees.
Security Code Scan - Security code analyzer for C# and VB.NET. Detects various security vulnerability patterns: SQLi, XSS, CSRF, XXE, Open Redirect, etc.
shipshape - Static program analysis platform that allows custom analyzers to plug in through a common interface
SonarQube - SonarQube is an open platform to manage code quality.
STOKE - a programming-language agnostic stochastic optimizer for the x86_64 instruction set. It uses random search to explore the extremely high-dimensional space of all possible program transformations
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)
Undebt - Language-independent tool for massive, automatic, programmable refactoring based on simple pattern definitions
WALA - static analysis capabilities for Java bytecode and related languages and for JavaScript
XCode ©️ - XCode provides a pretty decent UI for Clang's static code analyzer (C/C++, Obj-C)

Other

Build tools

checkmake - Linter / Analyzer for Makefiles
codechecker - a defect database and viewer extension for the Clang Static Analyzer

Binaries

BinSkim - A binary static analysis tool that provides security and correctness results for Windows portable executables.
Manalyze - A static analyzer, which checks portable executables for malicious content.

Containers

clair - Vulnerability Static Analysis for Containers
collector - Run arbitrary scripts inside containers, and gather useful information
dagda - Perform static analysis of known vulnerabilities in docker images/containers.
Docker Label Inspector - Lint and validate Dockerfile labels
Haskell Dockerfile Linter - A smarter Dockerfile linter that helps you build best practice Docker images

Config Files

gixy - a tool to analyze Nginx configuration. The main goal is to prevent misconfiguration and automate flaw detection.

Configuration Management

ansible-lint - Checks playbooks for practices and behaviour that could potentially be improved
foodcritic - A lint tool that checks Chef cookbooks for common problems.
Puppet Lint - Check that your Puppet manifests conform to the style guide.

CSS

CSS Stats - Potentially interesting stats on stylesheets
CSScomb - a coding style formatter for CSS. Supports own configurations to make style sheets beautiful and consistent
CSSLint - Does basic syntax checking and finds problematic patterns or signs of inefficiency
Parker - Stylesheet analysis tool
sass-lint - A Node-only Sass linter for both sass and scss syntax.
scsslint - Linter for SCSS files
Specificity Graph - CSS Specificity Graph Generator
Stylelint - Linter for SCSS/CSS files

Gherkin

gherkin-lint - A linter for the Gherkin-Syntax written in Javascript.

HTML

HTML Inspector - HTML Inspector is a code quality tool to help you and your team write better markup.
HTML Tidy - Corrects and cleans up HTML and XML documents by fixing markup errors and upgrading legacy code to modern standards.
HTMLHint - A Static Code Analysis Tool for HTML

IDE Plugins

ale - Asynchronous Lint Engine for Vim and NeoVim with support for many languages
Attackflow Extension ©️ - Attackflow plugin for Visual Studio, which enables developers to find critical security bugs at real time in the source code without any prior knowledge.
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.
Security Code Scan - Security code analyzer for C# and VB.NET that integrates into Visual Studio 2015 and newer. Detects various security vulnerability patterns: SQLi, XSS, CSRF, XXE, Open Redirect, etc.
vint - Fast and Highly Extensible Vim script Language Lint implemented by Python.

LaTeX

ChkTeX - A linter for LaTex which catches some typographic errors LaTeX oversees.
lacheck - A tool for finding common mistakes in LaTeX documents.

Makefiles

portlint - A verifier for FreeBSD and DragonFlyBSD port directories

Markdown

mdl - A tool to check markdown files and flag style issues.

Mobile

android-lint-summary - Combines lint errors of multiple projects into one output, check lint results of multiple sub-projects at once.
FlowDroid - static taint analysis tool for Android applications
paprika - A toolkit to detect some code smells in analyzed Android applications.
qark - Tool to look for several security related Android application vulnerabilities

Packages

lintian - Static analysis tool for Debian packages
rpmlint - Tool for checking common errors in rpm packages

Template-Languages

ember-template-lint - Linter for Ember or Handlebars templates.
haml-lint - Tool for writing clean and consistent HAML
slim-lint - Configurable tool for analyzing Slim templates
yamllint - Checks YAML files for syntax validity, key repetition and cosmetic problems such as lines length, trailing spaces, and indentation.

Translation

dennis - A set of utilities for working with PO files to ease development and improve quality.

Writing

misspell fixer - Quick tool for fixing common misspellings, typos in source code
proselint - a linter for English prose with a focus on writing style instead of grammar.
vale - A customizable, syntax-aware linter for prose.

Web services

Attackflow ©️ - Application security testing tool with rules grouped into nine classes including Authorization, Injection, Cryptography, Authentication and Code Quality.
QuantifiedCode - Automated code review & repair
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.

More collections

go-tools - A collection of tools and libraries for working with Go code, including linters and static analysis
linters - An introduction to static code analysis
php-static-analysis-tools - A reviewed list of useful PHP static analysis tools
Tools for C/C++ - A list of static analysis tools for C/C++
Wikipedia - A list of tools for static code analysis.

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To the extent possible under law, Matthias Endler has waived all copyright and related or neighboring rights to this work. Title image Designed by Freepik.

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