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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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Domenico Tenace for Playful Programming

Mar 12

Rebuilding domenicotenace.dev: How Pure Astro and CSS Reminded Me That Simple Is Better 🌟

#astro #css #opensource #webdev

6 min read

Rafael Cavalcanti da Silva

Mar 10

SEO Case Study: From zero to Google in 12 weeks — Part 1

#seo #webdev #astro #performance

8 min read

Jardiel Vega Domínguez

Mar 8

Creating "StepStyle" with a Focus on UX E-commerce

#webdev #javascript #astro #ui

2 min read

Joachim Zeelmaekers

Feb 23

Rebuilding My Blog From the Ground Up

#softwareengineering #writing #blog #astro

4 min read

Pere

Feb 22

Building a High-Performance Site Analyzer with Astro, React, and Node.js Performance Hooks

#webdev #astro #react #performance

2 min read

Emerson Delatorre for Fazedor de Codigo

Mar 5

Como Construir um Blog com Astro e Inteligência Artificial (Sem Perder o Controle do Código)

#speckit #githubcopilot #astro #vibecoding

4 min read

Sami Bashraheel

Mar 1

Build Your Own Developer Card with Astro and Tailwind CSS

#astro #tailwindcss #component #tutorial

8 min read

Roshni

Mar 1

Local-First AI Astrologer: Building a Private, Multimodal Vedic AI Agent🔮

#astro #vision #hackathon #ai

3 min read

Jan 24

I Built a Complex Production Calculator for Arknights: Endfield using Astro & React (and solved circular dependency hell)

#showdev #astro #react #webdev

3 min read

Robin

Feb 25

AstroClock — A Real‑Time Astrology Engine Powered by WebAssembly (WASM)

#webdev #webassembly #html #astro

3 min read

Feb 25

Stop Shipping Translations to the Client: Edge-Native i18n with Astro & Cloudflare (Part 1)

#i18n #astro #cloudflare #webdev

19 min read

Jan 22

Building a Blazing Fast, Multi-Language Game Database with Astro (Zero JS)

#astro #webdev #opensource #performance

2 min read

HK Lee

Feb 24

Next.js vs Remix vs Astro vs SvelteKit in 2026: The Definitive Framework Decision Guide

#nextjs #remix #astro #sveltekit

16 min read

Feb 13

I shipped a production bilingual site using Astro 5 + React 19 islands.

#webdev #astro #react #ai

1 min read

Arnaud Dagnelies

Jan 19

Cloudflare Workers performance: an experiment with Astro and worldwide latencies

#cloudflare #astro #performance #webdev

11 min read

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