A command-line interface for linting and fixing Markdown files using markdownlint rules.
markdownlint-cli is a command-line interface for the markdownlint library that lints Markdown files to enforce style and consistency rules. It scans Markdown documents for common issues like improper formatting, hard tabs, or whitespace problems, helping teams maintain high-quality documentation. The tool can also automatically fix certain issues and integrates into development workflows.
Developers, technical writers, and documentation maintainers who work with Markdown files and want to enforce consistent styling across projects.
It provides a fast, scriptable way to apply markdownlint's extensive rule set directly from the terminal, with support for custom configurations, automated fixes, and seamless integration into CI/CD pipelines.
MarkdownLint Command Line Interface
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Supports JSON, JSONC, YAML, INI, TOML, and JS config files with automatic discovery and JSON Pointer, as detailed in the configuration section, allowing for highly tailored linting rules.
Includes a --fix option to automatically correct basic formatting issues in Markdown files, though the README notes that not all issues are fixable due to rule limitations.
Uses powerful glob patterns with support for ignore files like .markdownlintignore, enabling precise control over which files are linted across complex directory structures.
Allows inclusion of custom rule files or packages via the --rules option, extending linting capabilities beyond the default markdownlint rule set for specialized needs.
Ready for use with pre-commit workflows and outputs issues in JSON format, making it easy to integrate into automated pipelines and toolchains.
The --fix option does not address all issues, as many rules lack fix information, fixes can overlap, and some problems remain unresolved, requiring manual intervention.
Configuration file loading involves multiple steps and file types, with JS and TOML files requiring explicit --config arguments and not auto-loading, which can confuse users.
Requires Node.js installation for npm-based setup or reliance on Docker, which may be a barrier in non-JavaScript environments or projects avoiding additional tooling.