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HonKit vs Standard Ebooks Toolset: catalog facts
HonKit	Standard Ebooks Toolset
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Builds HTML, PDF and EPUB from one Markdown source Continues the open-source GitBook format	Lints ebook source against a detailed style guide Builds finished EPUB files
Command line only Requires a Node.js setup	Command line only Built around the Standard Ebooks conventions
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0
No account needed	No account needed
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.