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Astro vs Eleventy: catalog facts
Astro	Eleventy
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Ships little or no JavaScript by default Works with React, Vue, Svelte and other UI frameworks	Supports a wide range of template languages Flexible data cascade for building pages from data
Requires Node.js and familiarity with web development Not a visual editor; content is managed in files or an external CMS	Requires Node.js and comfort with the command line No built-in visual editor or admin interface
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
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.