Static Analysis for Markdown
markdownlint is a static analysis tool for checking Markdown files against a set of configurable rules and standards. It helps maintain consistent documentation by identifying issues like broken links, inconsistent headings, and formatting errors. The package is available as a command-line tool or as a library for integration into development workflows.
Background
- <strong>markdownlint</strong> is a widely used command-line tool and library for checking Markdown files against a set of style and formatting rules — think of it as a "linter" for Markdown, similar to what ESLint does for JavaScript.
- It helps developers and writers maintain consistent Markdown formatting (e.g., heading styles, list indentation, line lengths) by automatically detecting violations.
- The tool is maintained by <strong>David Anson</strong>, a Microsoft engineer, and has been a standard part of many development workflows for years.
- It can be run locally via Node.js, integrated into code editors (VS Code extension), or used in CI/CD pipelines to enforce documentation quality.
- Version 0.33.0 (the current release as of the page) adds new rules, fixes, and ongoing support for Markdown's evolving spec (CommonMark).