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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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Yavuz Özgüven

May 16

How I built an interactive JSON visualizer in the browser (no react-flow)

#showdev #webdev #astro #javascript

4 min read

Jun 19

How I get marketing sites to 100/100 on mobile Lighthouse (the exact Astro setup)

#webperf #astro #webdev #javascript

5 min read

Roger Rajaratnam

May 15

Sending new post notifications with Resend

#astro #resend #engineering

5 min read

Ugur Aslim

Jun 7

TypeScript Path Aliases Across Monorepo Workspaces: Configuring tsconfig So Your Astro, React, and FastAPI Projects Share Types Without Import Hell

#typescript #monorepo #astro #react19

4 min read

MORINAGA

May 18

Three post-deploy checks I run after every Cloudflare Pages build

#webdev #githubactions #astro #tutorial

4 min read

Ugur Aslim

Jun 6

Tailwind CSS @apply Pitfalls in Monorepos: Why Your Component Library's Styles Break When Imported Into Astro and React Separately

#tailwindcss #astro #react19 #monorepo

4 min read

MORINAGA

May 14

Three post-deploy checks I run after every Cloudflare Pages build

#webdev #githubactions #astro #tutorial

4 min read

Jaafar Abazid for ManTek Technologies

Jun 16

How we built mantek.io for the price of a domain

#webdev #cloudflare #astro #performance

5 min read

May 27

CLAUDE.md for Astro: 13 Rules That Stop AI from Shipping Too Much JavaScript

#astro #javascript #claudecode #webdev

7 min read

MORINAGA

May 13

Three post-deploy checks I run after every Cloudflare Pages build

#webdev #githubactions #astro #tutorial

4 min read

DC10101

May 12

Lessons from Building 370 Static Calculator Pages with Astro and Vanilla JS

#showdev #astro #javascript #webdev

5 min read

May 12

Full-Text Search on a 2 GB PostgreSQL Instance

#postgres #database #astro

10 min read

May 16

Building a standalone CMS admin with Hono and vanilla CSS glassmorphism

#astro #orbiter #cms #opensource

7 min read

MORINAGA

May 11

How I rebuilt Astro slug pages after AdSense flagged three sites for scaled content abuse

#showdev #astro #indiehackers #webdev

8 min read

MORINAGA

May 11

Verifying three custom domains in Google Search Console with Cloudflare DNS

#showdev #webdev #indiehackers #astro

4 min read

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