CommonMark compliant Markdown formatter

Node.js -based style checker and lint tool for Markdown/CommonMark files.

A tool to check Markdown files and flag style issues.

Format markdown code blocks using your favorite code formatters.

Pluggable Markdown code style linter written in JavaScript.

textlint is an open source text linting utility written in JavaScript.

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

Modern repositories include many technologies, each with its own set of linters. With 30+ linters and counting, Trunk makes it dead-simple to identify, install, configure, and run the right linters, static analyzers, and formatters for all your repos.

Code Analysis to ship Better Code, Faster.

Pluggable and configurable code transformer with built-in eslint, babel plugins support for js, jsx typescript, flow, markdown, yaml and json.

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

Automated translation platform for code comments and docstrings across 20+ file types. Eliminates language barriers in international software collaboration. Supports 100+ language pairs with syntax protection. Integrates into CI/CD pipelines like Ruff. 10-20x faster with concurrent processing.

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.

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

Combination of multiple linters to install as a GitHub Action.