Astro vs Jekyll

Last reviewed Aug 26, 2026 · 757 words

Astro and Jekyll produce the same thing: a folder of static HTML with no client-side framework, which puts them closer together than any other pair in the blogging category. Astro is the 2021 TypeScript project with 62,054 stars and an islands model that lets you drop a React or Svelte widget onto one page without paying for it everywhere else. Jekyll is the 2008 Ruby project with 51,649 stars that invented the workflow Astro inherited. Your decision is really "Node or Ruby on my machine" and "do I ever want interactivity".

Zero JavaScript, from both, for different reasons

Jekyll never had client-side JavaScript to remove. It renders Liquid templates to HTML and stops. Astro made zero-JS the headline feature because Gatsby and Next shipped React to every visitor; Astro pre-renders components to HTML and only hydrates the ones you explicitly mark with client:load or client:visible. In practice a blog on either scores the same on Core Web Vitals, and the static sites and Core Web Vitals post shows how little generator choice matters once the output is plain HTML. Where Astro pulls ahead is when the day comes that you want a search box, a comment widget, or a chart on one post. Astro gives you a component island; Jekyll gives you a <script> tag and a shrug.

Content collections versus _posts/

Jekyll's model is a directory convention: _posts/2026-08-26-slug.md with YAML front matter, and Liquid loops over site.posts. Eighteen years of themes and tutorials assume it. Astro's content collections put your Markdown in src/content/blog/ with a schema you declare in code, so a post missing its pubDate or with a typo in draft fails the build with a readable error instead of silently rendering wrong. For a solo blog that is a nicety; for a docs site with 5 contributors it keeps front matter honest. Astro also handles MDX natively if you want components inside posts, which Jekyll has no real equivalent for.

What each toolchain costs you

Astro needs a current Node LTS and a package.json with a dependency tree that will have 100 or more packages in it after npm create astro@latest. Dev server on port 4321, builds fast, minimum 512 MB RAM per the catalogue. Jekyll needs Ruby, Bundler, and a Gemfile; the catalogue puts it at 256 MB and it runs on a Raspberry Pi. The Ruby install is where newcomers get hurt, particularly on macOS where the system Ruby is not yours to install gems into, so budget an hour for rbenv the first time. Both are Medium difficulty on the catalogue: one setup wall each.

GitHub Pages and other free hosting

Jekyll has the unfair advantage here. Push a Jekyll repo to GitHub Pages and it builds with no workflow file, though on a pinned Jekyll 3.x with a limited plugin whitelist. Astro on Pages needs a GitHub Actions workflow; the Astro team maintains an official action, so it is a 20-line file you copy once. On your own server the difference vanishes: both are rsync of a build folder to a directory Caddy or Nginx serves. For anyone self-hosting, the Pages advantage is worth close to nothing.

Maintenance and where each project is heading

Astro ships major versions roughly yearly and the migration notes are good, but a site left for 3 years will need an afternoon of dependency updates. Jekyll changes so slowly that a 2019 site usually builds today with one bundle update. If you want the Node ecosystem with even less framework than Astro, Eleventy is the closest thing to Jekyll in JavaScript. Astro vs Gatsby is a shorter read: Astro wins that one.

Decision table

What I'd do

Astro for anything new that I expect to keep working on: the content schema catches my mistakes and the islands model means I never have to migrate when I want one interactive page. Jekyll for a site I want to set up once and forget, or for anyone whose machine already has Ruby and no Node. If genuinely torn, Astro; its momentum in 2026 is the stronger bet.