Astro

Astro is a modern JavaScript framework focused on building fast, content-driven websites. It uses a component-based approach with .astro files and follows the 'islands' or 'partial hydration' pattern: by default little to no JavaScript is shipped to the browser unless you explicitly hydrate interactive components. Astro is framework-agnostic—allowing you to use React, Vue, Svelte and other components inside an Astro project—and it supports both static site generation (SSG) and server-side rendering (SSR).

Imagine you're building a marketing site with lots of static content like product pages and blog posts. In Astro you can render those pages as static HTML or server-render them, and only integrate a few interactive parts (for example a price calculator or search widget) as React or Svelte components that are hydrated on demand. This results in a fast-loading site with minimal client-side JavaScript while still providing required interactivity, and you can deploy the project easily to platforms like Vercel or Netlify.