Plugin and Theme Ecosystem
How extensible each static site generator is and what themes are available.
Astro
A growing ecosystem of official and community integrations for UI frameworks, CSS tooling, and deployment adapters, plus a marketplace of themes, though younger than more established generators.
VuePress
A mature plugin and theme ecosystem built up over several years, though new plugin development has slowed as attention shifts to VitePress.
VitePress
A smaller but actively growing plugin ecosystem, inheriting compatibility with the broader Vite plugin ecosystem for anything not covered by VitePress-specific plugins.
Gatsby
Historically one of the largest plugin ecosystems of any static site generator (thousands of source, transformer, and functionality plugins), though many are now unmaintained following the slowdown in Gatsby’s active development.
Docusaurus
A solid plugin and theme ecosystem focused specifically on documentation features (search integrations, versioning, i18n), backed by Meta and a large open-source community.
Eleventy
A large community plugin ecosystem, reflecting its flexible, template-agnostic design — plugins exist for shortcodes, image optimization, RSS feeds, and much more.
Hugo
A large theme ecosystem and a set of built-in functions/shortcodes rather than an npm-style plugin system, since Hugo’s single-binary design doesn’t support runtime plugins in the JavaScript sense.
Jekyll
A large, long-established plugin and theme ecosystem, including official support from GitHub Pages for a curated safe subset of plugins.
Zola
A smaller theme ecosystem than Hugo’s, and no runtime plugin system at all (consistent with its single-binary design) — extensibility comes mainly through Tera templates and shortcodes.