The Best CSS Static Analysis Tools (Linters/Formatters)
We rank 30 CSS linters, code analyzers, formatters, and more. Find and compare tools like Mega-Linter, SonarQube, Codacy, and more. Please rate and review tools that you've used. This helps others find the best tools for their projects.
11 CSS Tools
19 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
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.
biome
A toolchain for web projects, aimed to provide functionalities to maintain them. Biome formats and lints code in a fraction of a second. It is the successor to Rome. It is designed to eventually replace Biome is designed to eventually replace Babel, ESLint, webpack, Prettier, Jest, and others.
Putout
Pluggable and configurable code transformer with built-in eslint, babel plugins support for js, jsx typescript, flow, markdown, yaml and json.
Hound CI
Comments on style violations in GitHub pull requests. Supports Coffeescript, Go, HAML, JavaScript, Ruby, SCSS and Swift.
Atom-Beautify
Beautify HTML, CSS, JavaScript, PHP, Python, Ruby, Java, C, C++, C#, Objective-C, CoffeeScript, TypeScript, Coldfusion, SQL, and more in Atom editor.
coala
Language independent framework for creating code analysis - supports over 60 languages by default.
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.
Unibeautify
Universal code beautifier with a GitHub app. Supports HTML, CSS, JavaScript, TypeScript, JSX, Vue, C++, Go, Objective-C, Java, Python, PHP, GraphQL, Markdown, and more.
CodeFlow
Automated code analysis tool to deal with technical depth. Integrates with Bitbucket and Gitlab. (free for Open Source Projects)
autocorrect
A linter and formatter to help you to improve copywriting, correct spaces, words, punctuations between CJK (Chinese, Japanese, Korean).
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.
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Frequently Asked Questions
What are CSS tools?
CSS (Cascading Style Sheets) is a style sheet language used for describing the presentation of a document written in a markup language. A style sheet is a collection of rules that tells a web browser how to display an HTML document.
What are the best CSS static analysis tools and linters?
The most popular CSS tools ranked by user votes are: Mega-Linter, SonarQube, Codacy, biome, Project Wallace CSS Analyzer.
Which CSS services are free for open source projects?
Commercial services with a free plan for open source include Mega-Linter, SonarQube, Codacy, biome, Project Wallace CSS Analyzer, Putout, cqc, Hound CI, Stylelint, Atom-Beautify, coala, CSS Stats, CSScomb, CSSLint, GraphMyCSS.com, Nu Html Checker, Parker, PostCSS, sass-lint, scsslint, Specificity Graph, TencentCodeAnalysis, Unibeautify, pfff, SonarCloud, CodeFactor, autocorrect, SonarLint.