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Welcome to Astro!

Astro is a new kind of static site builder that delivers lightning-fast performance with a modern developer experience. Astro borrowed the best parts of our favorite tools and then added a few innovations, including:

🚀 Bring Your Own Framework (BYOF): Build your site using React, Svelte, Vue, Preact, web components, or just plain ol’ HTML + JavaScript.
🚀 100% Static HTML, No JS: Astro renders your entire page to static HTML, removing all JavaScript from your final build by default.
🚀 On-Demand Components: Need some JS? Astro can automatically hydrate interactive components when they become visible on the page. If the user never sees it, they never load it.
🚀 Fully-Featured: Astro supports TypeScript, Scoped CSS, CSS Modules, Sass, Tailwind, Markdown, MDX, and any of your favorite npm packages.
🚀 SEO Enabled: Automatic sitemaps, RSS feeds, pagination and collections take the pain out of SEO and syndication.

How it works

Astro works a lot like a static site generator. If you have ever used Eleventy, Hugo, or Jekyll (or even a server-side web framework like Rails, Laravel, or Django) then you should feel right at home with Astro.

In Astro, you compose your website using UI components from your favorite JavaScript web framework (React, Svelte, Vue, etc). Astro renders your entire site to static HTML during the build. The result is a fully static website with all JavaScript removed from the final page. No monolithic JavaScript application required, just static HTML that loads as fast as possible in the browser regardless of how many UI components you used to generate it.

Of course, sometimes client-side JavaScript is inevitable. Image carousels, shopping carts, and auto-complete search bars are just a few examples of things that require some JavaScript to run in the browser. This is where Astro really shines: When a component needs some JavaScript, Astro only loads that one component (and any dependencies). The rest of your site continues to exist as static, lightweight HTML.

In other full-stack web frameworks this level of per-component optimization would be impossible without loading the entire page in JavaScript, delaying interactivity. In Astro, this kind of partial hydration is built into the tool itself.

You can even automatically defer components to only load once they become visible on the page with the :visible modifier.

This new approach to web architecture is called islands architecture. We didn’t coin the term, but Astro may have perfected the technique. We are confident that an HTML-first, JavaScript-only-as-needed approach is the best solution for the majority of content-based websites.

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Sep 28

Building a bilingual browser game with Astro and Cloudflare (and making the HTML actually cache)

#astro #gamedev #cloudflare #webperf

2 min read

Mikhail Predtetchenski

Nov 1

One markdown file, three sites: what broke the first time my crosspost ran

#githubactions #astro #devto #hashnode

8 min read

Oct 21

Solving China's GPS Drift (GCJ-02) and Travel Friction with a Zero-JS Astro Stack

#showdev #webdev #astro #javascript

5 min read

Douglas Rosenberg

Oct 11

Rebuilding My Own Musician Site: From a Blazor Template to a Verified Astro Build

#blazor #astro #cloudflare #csharp

4 min read

Official template feature and workflow insights

Domenico Tenace for Playful Programming

Oct 28

Astro Wellness: The First Project Built Start to Finish by My Agent Team 🏋️

#ai #webdev #astro #javascript

4 min read

Sep 25

I built an Astro theme with a perfect 100/100 Lighthouse score and Enterprise SEO (Open Source)

#astro #webdev #tailwindcss #react

2 min read

Oct 29

Built Free, Privacy-First Tools for Pakistan Tax & Zakat (They Never Touch a Server)

#showdev #privacy #javascript #astro

3 min read

The Practical Developer

Oct 27

Astro Explained: Websites That Ship Less JavaScript

#astro #frameworks #beginners #programming

2 min read

Oct 26

Minifying Astro HTML after the build: a post-build script, measured

#astro #javascript #webdev #performance

5 min read

Sep 22

I Built an Image Compressor That Targets Exact File Sizes Without Uploading Your Photos

#productivity #astro

2 min read

Oct 14

My Honeypot Could Silently Drop Real Quote Requests. Here's the Fix.

#webdev #a11y #security #astro

6 min read

Sep 21

Directing a 3D Web Experience with AI

#ai #astro #gsap #threejs

7 min read

Roger Rajaratnam

Sep 24

Adding reading times to an Astro blog

#astro #engineering #frontend

3 min read

Oct 23

One config file, zero runtime JS: how I built a fast Astro + Tailwind 4 template for small business sites

#astro #tailwindcss #webdev #performance

6 min read

HaulFare

Oct 22

How a static Astro site keeps its prices current every month

#astro #webdev #javascript #performance

6 min read

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