Linter for Angular projects

Accessibility engine for automated Web UI testing. Tests HTML against WCAG 2.0, 2.1, and 2.2 guidelines. Used by Google Lighthouse, Microsoft Accessibility Insights, and thousands of organizations worldwide.

An HTML linter for Bootstrap projects.

Format ERB files with speed and precision.

Lint your ERB or HTML files

A Grunt wrapper for Bootlint, the HTML linter for Bootstrap projects.

A gulp wrapper for Bootlint, the HTML linter for Bootstrap projects.

HTML Inspector is a code quality tool to help you and your team write better markup.

Corrects and cleans up HTML and XML documents by fixing markup errors and upgrading legacy code to modern standards.

A normaliser/beautifier for HTML that also understands embedded Ruby. Ideal for tidying up Rails templates.

A Static Code Analysis Tool for HTML.

Automated accessibility testing tool that runs HTML CodeSniffer or axe-core from the command line. Supports CI/CD integration, multiple reporters, and testing against WCAG 2.1 AA standards.

A static analysis framework for Web Components.

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

Open-Source static code analysis tool to discover, filter and prioritize security risks and vulnerabilities leading to sensitive data exposures (PII, PHI, PD). Highly configurable and easily extensible, built for security and engineering teams.

An opinionated code formatter.

Multi-language Static Application Security Testing (SAST) platform that detects critical vulnerabilities, including hardcoded secrets, weak cryptography, backdoors, SQL injections, insecure configurations, etc.

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

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

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 Build.

Commercial Static Code Analysis which generates exploits to verify vulnerabilities.

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.

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

A language-agnostic linter that keeps code, documentation, and configuration in sync and enforces strict formatting and validation rules.

Offline HTML5 validator.

Helps you catch problems in your HTML/CSS/SVG

SonarQube Cloud 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. SonarQube Cloud provides a free plan.

SonarQube for IDE (formerly 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.

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.

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

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

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

Automated Code Analysis for repos on GitHub or BitBucket.

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

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.

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