Compare software

rumdl vs mdformat: catalog facts
rumdl	mdformat
Free Free and open source under the MIT licence.	Free Free and open source under the MIT license.
Command line	Command line
Both lints and formats Markdown Written in Rust for speed	Formats Markdown files in place or through standard input and output Supports plugins for Markdown extensions and code blocks
Command-line only Younger project than established Markdown linters	Uses CommonMark rules by default, so other Markdown syntax may need plugins
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 8, 2026

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