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Tectonic vs Vivliostyle: catalog facts
Tectonic	Vivliostyle
Free Free and open source under the MIT licence.	Free Free and open source.
Command line	Web, Command line
No full TeX distribution needed Fetches missing LaTeX packages automatically	Book layout written in standard CSS Browser viewer and command-line PDF export
Needs network access to fetch support files it has not cached Built on XeTeX, so documents relying on other engines may need changes	Requires familiarity with HTML and CSS Vivliostyle Pub is still in alpha
Downloadable app	Downloadable app, Web application
Open source	Open source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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