Astro vs Eleventy for Solo Developers

Quick Comparison

Star counts, version numbers, and download figures above are pulled from the GitHub and npm APIs and are spelled out with their sources in the By the Numbers section below.

Astro Overview

Astro is a static site generator that ships zero JavaScript by default. The docs put it plainly: Astro renders every UI component to "just HTML & CSS, stripping out all client-side JavaScript automatically." You write components in .astro files using a syntax that feels like JSX with frontmatter, and you can mix in React, Vue, Svelte, or Solid components when you actually need interactivity. The islands architecture means each interactive component hydrates independently rather than bundling everything together, and you opt into that hydration explicitly with directives like client:load, client:idle, and client:visible.

The framework is on version 6 as of 2026. Astro 6.0 landed in March 2026 and the line is being patched aggressively (6.4.2 shipped on May 28, 2026). Astro 6 was a big swing: it rebuilt the dev server and much of the build pipeline on top of Vite's Environment API so the dev runtime matches production, added a built-in Fonts API and a Content Security Policy API, and introduced live content collections that can pull from externally hosted content at request time. It also raised the floor to Node 22.

The developer experience is excellent. The dev server is fast, content collections give you typed frontmatter for your markdown, and the integrations ecosystem covers everything from MDX to image optimization to RSS feed generation. Deploying to Cloudflare Pages, Vercel, or Netlify takes a single command.

Astro has become the default choice for content-heavy sites that need occasional interactivity. Documentation sites, blogs, marketing pages, and small e-commerce setups all fit naturally. The framework absorbs the complexity of supporting multiple UI libraries without making simple sites feel heavy.

Eleventy Overview

Eleventy is the static site generator for people who want a tool that gets out of the way. It supports Nunjucks, Liquid, Handlebars, Markdown, EJS, Pug, WebC, and JavaScript templates (the docs list eleven-plus languages, which is where the name comes from), and you can mix them in the same project. There is no required directory structure, no required config file, and no required framework on top.

Eleventy is on version 3, with 3.1.5 the current stable release as of March 2026. The v3 line was the big modernization: it brought first-class, bundler-free ESM support, and the 3.1.0 release in 2025 trimmed the core's dependency count by 28 percent and its install weight by 22 percent. A v4 is in alpha (4.0.0-alpha.7 as of March 2026) with experimental zero-config TypeScript support, but it is not the version you would ship on today.

The output is just HTML. Eleventy doesn't ship a JavaScript runtime, doesn't hydrate anything, and doesn't impose a component model. If you want interactivity, you write your own JavaScript and add a script tag. The result is some of the fastest, lightest static sites you can build with any tool.

For solo developers who already know HTML, CSS, and a templating language, Eleventy gets you from idea to deployed site in an evening. The learning curve is shallow because there's barely anything to learn. The plugin ecosystem covers RSS, sitemaps, image optimization, and most other common needs.

Key Differences

Component model versus templating. Astro gives you a real component system with scoped styles, props, slots, and the option to import React or Svelte for interactive bits. Eleventy gives you template includes and shortcodes. For a site with reusable cards, headers, and complex layouts, Astro's component model is more productive. For a simple blog or docs site, Eleventy's templates are plenty.

JavaScript story is fundamentally different. Astro is built around the idea that you'll want some interactivity, and the islands architecture makes that cheap. Eleventy assumes you want zero JavaScript and treats interactivity as something you'll add manually. If your site truly is static content, Eleventy's approach is simpler. If you'll eventually want a search bar, a comment widget, or a small interactive demo, Astro handles it more gracefully.

Content collections versus loose files. Astro's content collections give you typed frontmatter, schema validation with Zod, and automatic TypeScript types for your markdown. Eleventy treats markdown files as plain data you can query with collections, but there's no schema validation. For a blog with consistent post structure, Astro's approach prevents whole categories of bugs.

Build performance at scale. Eleventy is faster on huge sites with thousands of pages. Astro has been catching up with Vite and improved build pipelines, but for a 5,000-page documentation site, Eleventy will finish first. For typical solo developer sites under a few hundred pages, the difference doesn't matter.

Ecosystem direction. Astro has serious momentum, frequent releases, and integrations with basically every modern frontend tool. Eleventy is more stable and lower-velocity, which some people prefer. If you want the tool you pick today to still feel modern in three years, Astro's trajectory is stronger. If you want a tool that won't change much, Eleventy's stability is the feature.

By the Numbers (2026)

The momentum gap is not a vibe, it shows up in the public counters. Here is where both projects sit as of late May 2026.

Versions and release cadence. Astro is on a major-version-six cadence. Astro 6.0 shipped on March 10, 2026, and the team has pushed point releases steadily since, with 6.4.2 landing on May 28, 2026. Eleventy is on version 3, with 3.1.5 as the current stable release from March 18, 2026, and a v4 still in alpha (4.0.0-alpha.7). Astro ships breaking-and-feature majors roughly once a year; Eleventy moves slower and more deliberately, which is the maintainer's stated philosophy, not a sign of neglect.

GitHub stars. Astro sits at roughly 59.6k stars against Eleventy's roughly 19.7k. That is close to a three-to-one gap, and it has widened steadily as Astro became the default recommendation for content sites.

npm weekly downloads. This is the starkest number. In the week of May 21 to 27, 2026, the astro package pulled about 3.0 million downloads while @11ty/eleventy pulled about 173k. That is more than a seventeen-to-one ratio. Downloads inflate from CI and dependency installs, so treat the absolute figures as directional, but the ratio tells you which tool the broader ecosystem is building on.

Language and footprint. Astro is written in TypeScript; Eleventy is written in JavaScript. Eleventy's v3.1 release cut its core dependency count by 28 percent, so the install footprint is small and getting smaller, which matters if you care about supply-chain surface area.

What the numbers do not tell you is fit. A seventeen-to-one download ratio does not mean Eleventy is seventeen times worse for your project. It means more people reach for Astro first, which is a real signal for things like community plugins and Stack Overflow answers, and a non-signal for whether your specific site needs a component model at all.

Which Ships Faster for a Solo Dev

The honest answer depends on what you are building, and the real feature differences between the two make this a clean decision tree rather than a coin flip.

You are shipping pure content with no interactivity, and you already know a templating language. Eleventy ships faster. There is no component model to learn, no framework config, and the output is HTML with zero client JavaScript by default. If you know Nunjucks or Liquid, you can have a blog deployed in an evening. This is Eleventy's home turf.

You want reusable components, scoped styles, and typed content from day one. Astro ships faster. Content collections give you Zod-validated frontmatter and automatic TypeScript types, which the docs describe as a guarantee "that this data exists in a predictable form when you need to reference or query it." For a blog or docs site where every post shares a structure, that schema validation catches a missing date or a misspelled tag at build time instead of in production. You write the schema once and the editor autocompletes your frontmatter forever after.

You think the site will stay static now but want an interactive escape hatch later. Astro ships faster over the life of the project, even if Eleventy is marginally quicker to stand up. The islands architecture means adding a search box or a comment widget later is a client:visible directive on one component, not a rewrite. With Eleventy you would be hand-rolling that JavaScript and wiring it in yourself. Astro lets you start static and add interactivity surgically without paying for it on every page.

You are building a large site, thousands of pages, and build time is the bottleneck. Eleventy ships faster, both to build and to iterate. It has historically been quicker on very large page counts because it does less per page. For a 5,000-page reference site, that compounding build time is the deciding factor. For the few-hundred-page sites most solo developers actually run, the build-time difference is not something you will feel.

The summary: Eleventy wins the standing start when the site is genuinely static and you already speak its templating language. Astro wins the long game the moment a component model, typed content, or future interactivity enters the picture, which for most solo projects it eventually does.

When to Choose Astro

• You want a component-based authoring experience without shipping a heavy SPA
• You need occasional interactivity (search, forms, embedded apps)
• You like typed content collections with schema validation
• You want first-class MDX support for richer blog posts
• You want a tool with active development and a modern ecosystem

When to Choose Eleventy

• You want the absolute minimum tooling between you and HTML
• Your site is pure content with no interactivity needs
• You already know a templating language like Nunjucks or Liquid
• You're building a large site (thousands of pages) and care about build speed
• You prefer stable, slow-moving tools over fast-evolving ones

The Verdict

For most solo developers in 2026, Astro is the better default. It handles pure content sites just as well as Eleventy in terms of output (HTML with no JS), and it gives you a real escape hatch the moment you want to add an interactive component. The content collections feature alone makes blog and docs work significantly more reliable.

Eleventy is still the right call for specific cases. If you're building a content site that will never need interactivity, you already know Nunjucks or Liquid, and you want a tool that won't surprise you with breaking changes, Eleventy is genuinely lovely. The maintainer's approach to stability is rare and valuable.

The practical answer is that Astro covers more ground for more solo developers. You can build a pure static blog with it and end up with output that's basically identical to Eleventy's, and you'll have the option to add React components or a search widget later without rewriting anything. Pick Astro unless you have a specific reason rooted in simplicity or scale that pushes you toward Eleventy.

Sources

All version numbers, star counts, and download figures in this post were pulled from the GitHub and npm APIs on May 28, 2026. Feature claims are sourced from the official documentation.

• Astro homepage and Astro 6.0 announcement for the version 6 feature set and release date
• Astro releases on GitHub and the withastro/astro repository for the latest version (6.4.2) and star count
• Astro islands architecture docs for zero-JS-by-default and client directives
• Astro content collections docs for Zod schema validation and the content layer
• Eleventy homepage and Eleventy docs for the templating-language list and project description
• Eleventy version history and Eleventy releases on GitHub for the v3.1.5 stable release and v4 alpha status
• 11ty/eleventy repository for the star count
• npm download API for weekly download counts: astro and @11ty/eleventy