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Silex vs Bootstrap Studio: catalog facts
Silex	Bootstrap Studio
Free Free and open source under the AGPL with all features included and no premium tier.	Paid Sold as a paid licence; the price is not listed in the research.
Web, Self-hosted	macOS
Exports standard static HTML and CSS with no lock-in Visual editor with full CSS control	Visual page building on top of Bootstrap Editable HTML, CSS, Sass and JavaScript
Desktop app was still announced as coming soon Smaller template and plugin ecosystem than commercial builders	Tied to the Bootstrap framework Paid software
Web application, Self-hosted	Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
Not stated if an account is 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 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.