Compare software

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

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.