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Vivliostyle vs HonKit: catalog facts
Vivliostyle	HonKit
Free Free and open source.	Free Free and open source.
Web, Command line	Windows, macOS, Linux, Command line
Book layout written in standard CSS Browser viewer and command-line PDF export	Builds HTML, PDF and EPUB from one Markdown source Continues the open-source GitBook format
Requires familiarity with HTML and CSS Vivliostyle Pub is still in alpha	Command line only Requires a Node.js setup
Downloadable app, Web application	Downloadable app
Open source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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