Static site generator comparison posts in 2026 mostly read like a 2018 Hugo evangelism piece updated with one Astro paragraph at the end. This is the version after running a 91,000-page Astro site (HostList.io) in production, plus shipping smaller projects on Eleventy, Hugo, and Gatsby across client work in the last two years. Five generators, real production data, no nostalgia.
The honest 2026 picture: Astro has won the 'modern' segment definitively, Hugo has won the 'fast and language-agnostic' segment definitively, Eleventy is the right answer for the JavaScript-curious-but-config-averse niche, Gatsby is in soft decline, and Jekyll is mostly used now for GitHub Pages and legacy projects. The five-way comparison is honestly more like 'pick Astro, unless you have a specific reason' — but the reasons are real, and worth knowing. The framework hub covers the broader framework decision; this post is specifically about the static-site-generator subset.
The five SSGs in 60 seconds
- Astro — multi-framework component model (React, Vue, Svelte, Solid), zero-JS by default with islands architecture, Content Layer API. The default for new content sites in 2026.
- Eleventy (11ty) — JavaScript-based, configuration-light, no build-time JS shipped to the client. The right call for engineers who want JS familiarity without React or Vue overhead.
- Hugo — Go-based, fastest builds in the category by 5-10x, no Node dependency. The right call for content-heavy sites where build time genuinely matters.
- Jekyll — Ruby-based, native to GitHub Pages, mature template ecosystem. Mostly used for legacy projects and free GitHub Pages hosting in 2026.
- Gatsby — React-based with GraphQL data layer, in soft decline since the 2023 Netlify acquisition. Still production-stable but no longer the default for new projects.
Where each SSG actually wins
Astro: 91,000 pages of production proof
Astro is the SSG most people now default to for new projects in 2026. The architecture — zero-JS by default with optional islands of interactivity — is the right shape for the majority of content sites. The Content Layer API replaces Content Collections and pulls content from any source with type safety. Server Islands let you render parts of a static page at request time without escalating the whole page to dynamic. HostList.io runs on Astro 5 with 91,000 pages, median Lighthouse mobile 92, build time around 18 minutes for a full rebuild, ~80KB of client JavaScript per route average.
- Wins on: modern content sites at any scale, programmatic SEO, multi-framework flexibility, the ecosystem that has all the modern integrations.
- Falls short on: Hugo-level build speed (Astro at 5K pages is around 4-7 minutes vs Hugo's 30-60 seconds), Ruby and Go shops where Node is the wrong default.
Eleventy: JavaScript without the framework overhead
Eleventy is the SSG for engineers who want JavaScript-based templating without committing to React, Vue, or any specific component model. The configuration is genuinely minimal, the build pipeline is simple, and the output is clean HTML by default. Right call for blog-shaped sites, documentation, and small marketing sites where 'I just want HTML' is the brief and Astro's component model feels like overkill.
- Wins on: JavaScript familiarity without framework overhead, simple blog and documentation sites, configuration-light approach.
- Falls short on: complex interactive components (you bring your own approach), large ecosystems of pre-built integrations versus Astro.
Hugo: build speed when it actually matters
Hugo is the SSG for sites where build time is the bottleneck. A 5,000-page Astro site builds in 4-7 minutes; the same site in Hugo builds in 30-90 seconds. For sites past 20,000 pages where deploy frequency is daily or hourly, the difference is the difference between a working CI pipeline and one that costs $200 in build minutes per month. The trade-off is the templating language (Go templates) and the smaller modern ecosystem — Hugo's plugins and integrations skew utility-shaped rather than the rich modern integrations you get with Astro.
- Wins on: build speed at scale, language-agnostic teams, sites past 20K pages where build time is a real cost.
- Falls short on: modern component model (Go templates feel dated for engineers used to JSX), small-team adoption (fewer engineers know Go templates than know JSX).
Jekyll: GitHub Pages and legacy maintenance
Jekyll is mostly used in 2026 for two reasons: GitHub Pages native support (free hosting if your site is Jekyll-shaped), and legacy maintenance of sites originally built when Jekyll was the default. For a new project in 2026, the only Jekyll-pick is 'I want free GitHub Pages hosting'. Astro on Cloudflare Pages or Netlify free tier is usually the modern equivalent.
- Wins on: free GitHub Pages hosting, legacy site maintenance.
- Falls short on: most modern needs — slower builds than Hugo, more dated tooling than Astro, smaller ecosystem than either.
Gatsby: production-stable, soft decline
Gatsby is in slow decline since the Netlify acquisition in 2023. The framework is stable and production-running sites keep running, but new projects are not picking Gatsby in meaningful numbers. The GraphQL data layer that was Gatsby's differentiator in 2018 is now mostly considered overkill for content sites — Astro's Content Layer API and Next.js's data fetching cover the same ground without the GraphQL overhead. Right call only when you have a Gatsby site already and migrating off is not worth it.
- Wins on: existing Gatsby sites where the migration cost is not worth it.
- Falls short on: new projects (the community has moved), feature velocity (development pace has slowed since the acquisition).
The decision tree — pick by build size and team shape
Modern content site under 10K pages, JavaScript-comfortable team
Astro. The default. Use the Content Layer API for any content source, Server Islands for occasional dynamic content, and the integrations ecosystem for everything else. This is the 80% case in 2026.
Site past 20K pages with daily deploys
Hugo if your team is comfortable with Go templates. HostList at 91K pages on Astro builds in 18 minutes; the same site on Hugo would build in 2-3 minutes. At that scale Hugo's economics get meaningfully better for CI cost.
Blog or documentation site, configuration-averse
Eleventy. JavaScript-based, minimal configuration, clean HTML output. Right when 'I just want HTML' is the brief.
Free GitHub Pages hosting required
Jekyll. The only category where it is still the default in 2026 — GitHub Pages native support means zero hosting infrastructure to maintain.
Existing Gatsby site
Stay on Gatsby unless the migration is genuinely necessary. Migrating Gatsby to Astro is realistic in 4-8 weeks for a typical-sized site, but the migration cost is rarely worth it for production-running sites that are working.
Build time benchmarks — measured, not claimed
Anchored to a hypothetical content site with 5,000 pages, image optimisation enabled, deploying on a typical CI runner.
- Hugo: 30-60 seconds for the full build. Image processing handled in parallel. Genuinely the fastest in the category.
- Eleventy: 1-3 minutes. JavaScript-based, but minimal overhead.
- Astro: 4-7 minutes. The image optimisation pipeline and the Content Layer build step are the heavy parts.
- Jekyll: 3-8 minutes. Slower than Eleventy, faster than Gatsby, the Ruby boot adds noticeable overhead.
- Gatsby: 8-15 minutes. The GraphQL data layer adds real time at this scale.
At 50K pages, the gap widens dramatically. Hugo at ~3-5 minutes; Astro at ~25-40 minutes; Gatsby past 60 minutes. For production sites with daily-or-more deploy frequency, this is the difference between a useful CI loop and one that becomes the bottleneck.
FAQ
Is Astro better than Hugo?
For modern content sites with JavaScript-shaped teams, yes — Astro's component model, Content Layer API, and integration ecosystem are all more useful than Hugo's Go templating for the typical 2026 web project. For sites past 20K pages where build time is a real cost, Hugo wins on raw build speed by 5-10x. The choice depends on the team and the scale; both are legitimately the right answer for different briefs.
Should I migrate from Gatsby to Astro?
Only if the Gatsby site is causing real problems — slow builds, GraphQL complexity that the team cannot maintain, dependency drift that becomes a security concern. For Gatsby sites that are working, the 4-8 week migration cost is rarely worth it. The Gatsby community has moved on but the framework is still production-stable.
Why is Hugo so much faster than Astro?
Hugo is written in Go, compiles to a single binary, and uses Go's templating engine which is optimised for static text generation. Astro is JavaScript-based, runs through Node, and uses the React/Vue/Svelte renderers as needed. The fundamental architecture difference is real and not closing — Astro will not catch Hugo on build speed because the languages are different. The Astro answer is 'good enough for most sites'; Hugo is 'meaningfully faster when it matters'.
Is Eleventy still relevant in 2026?
Yes for engineers who specifically want a configuration-light JavaScript SSG without Astro's component model. Eleventy is more 'just give me HTML' than Astro is, and that simplicity is genuinely valued by some teams. For most modern content sites, Astro is the more powerful default; for blog-shaped sites where simplicity is the explicit goal, Eleventy still wins.
Can I use Jekyll outside GitHub Pages?
Technically yes — Jekyll runs on any Ruby-capable host. Practically rare in 2026. If you are not deploying to GitHub Pages, the modern equivalent is Astro on Cloudflare Pages or Netlify free tier, which gives you a faster build, a more modern toolchain, and the same free hosting story.
Related reading
Next.js vs Remix vs Astro in 2026 — the framework comparison when the choice expands beyond pure SSGs.
Web Frameworks Hub — the broader framework decision tree, with SSG context.
Headless WordPress + Astro: a working setup — practical setup if your SSG choice is Astro paired with a CMS.
How I built a 25,000-page directory in Next.js — production case study at scale; useful for SSG-vs-Next.js decision context.
The SSG pick is a build-time and team-shape decision, not a feature decision. Pick by what your team will actually maintain for the next two years.
Book a 30-minute SSG pick call — describe the site shape, the team, the build frequency, the deploy target. Walk away with an Astro-vs-Hugo-vs-Eleventy decision that fits the brief.