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markdownlint-cli vs rumdl: catalog facts
markdownlint-cli	rumdl
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence.
Command line	Command line
Configurable rule set Pre-commit hook and Docker support	Both lints and formats Markdown Written in Rust for speed
Requires Node.js when installed through npm Checks only Markdown files	Command-line only Younger project than established Markdown linters
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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