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Prettier vs Hongdown: catalog facts
Prettier	Hongdown
Free Free and open source; an enterprise support offering is available.	Free Free and open source under the GPL-3.0-or-later licence.
Web, Command line	Windows, Command line
Consistent formatting with very little configuration Wide language support with community plugins	Consistent, documented Markdown style applied automatically Per-project configuration file
Few options, so it may not match an existing house style Some languages depend on community plugins	Enforces one author's conventions, which may not match your preferences Command-line only, with no editor interface of its own
Downloadable app, Web application	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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