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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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Ugur Aslim

Jul 13

Astro + React 19 Deferred Rendering for SaaS Marketing: Lazy-Loading Interactive Pricing Calculators Without JavaScript Bloat

#astro #react19 #performance #webarchitecture

4 min read

Jul 8

How I built a 145-page multilingual site with Astro + Cloudflare Pages (and why I didn't use Next.js)

#astro #webdev #seo #javascript

2 min read

Jul 21

I REBUILT MY SITE WITH ASTRO & SANITY

#showdev #astro #frontend #webdev

5 min read

Kavin HBN

Jul 4

Why I’m Thinking of Switching My Portfolio to Astro.js ..

#astro #seo #webdev #devops

4 min read

Ugur Aslim

Jul 2

Tailwind CSS Responsive Image Optimization in Astro: Shipping Srcset, WebP, and AVIF Without Build-Time Bloat

#astro #tailwindcss #performance #images

4 min read

Mizanur Rahaman

Jul 1

CalcMora just crossed 200 tools | Here's what changed under the hood

#showdev #astro #webdev #javascript

2 min read

Cassidy Williams

Jul 10

Whitespace in Astro 7.0

#astro #javascript

2 min read

Jun 30

How a Simple Word Counter Turned Into 50+ Browser-Based Tools in Just Three Weeks

#astro #webdev #javascript #performance

5 min read

Jun 30

ทำเว็บธุรกิจ Local Service ด้วย Astro ให้โหลดเร็วและ SEO ดีขึ้น

#astro #seo #webdev #javascript

3 min read

Martin Rodriguez

Jun 29

Parsing markdown tables in 20 lines (because remark was overkill)

#javascript #webdev #markdown #astro

3 min read

Summer Bug Smash: Clear the Lineup 🐛🛹

Jiwon Yoon

Jul 18

Clear the Lineup — Astro's `popover` Attribute Had No Way to Say False

#bugsmash #devchallenge #astro #webdev

6 min read

Jun 27

Why I built a minimalist, ad-free text utility tool with Astro & Cloudflare Pages

#showdev #webdev #astro #tailwindcss

2 min read

Karthikeyan K R

Jun 25

We Upgraded to Astro v7 in 5 Minutes (Zero Breaking Changes) 🚀

#webdev #astro #javascript #performance

2 min read

MORINAGA

Jun 24

Astro 5 content collections as an editorial layer in a programmatic site

#astro #webdev #typescript #indiehackers

4 min read

kai zhang

Jul 17

I added in-browser HLS playback to a static IPTV directory (and skipped a media proxy)

#javascript #astro #hls #webdev

4 min read

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