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Astro

Create fast, content-driven websites and web applications with a flexible framework that prioritizes performance and developer experience.

Screenshot of Astro website

This framework is engineered for speed, utilizing a server-first approach that renders components on the server to deliver lightweight HTML to the browser. By minimizing unnecessary JavaScript, it ensures your site remains fast and responsive, which is critical for improving SEO and conversion rates. It is designed to handle content from any source, whether it is your local file system, an external API, or a headless CMS.

At the heart of the framework is the Astro Islands architecture. This unique feature allows you to isolate interactive UI components, loading only the JavaScript required for those specific parts of the page. This granular control over performance results in significantly better Core Web Vitals compared to traditional single-page application frameworks.

Flexibility is a core tenet, allowing you to bring your own UI framework. You can seamlessly integrate components built with React, Vue, Svelte, Solid, or Preact within the same project. This prevents vendor lock-in and lets you leverage your existing expertise while benefiting from a modern, optimized build pipeline.

Key features include:

  • Built-in TypeScript support for robust type safety across your codebase.
  • Automatic image optimization to handle modern formats and prevent layout shifts.
  • View Transition APIs for smooth, native-feeling page navigation.
  • Extensive integration ecosystem for easy deployment to platforms like Vercel, Netlify, and Cloudflare.

Whether you are building a simple blog, a complex e-commerce platform, or a dynamic web application, this tool provides the necessary utilities to organize your content, manage routing, and handle server-side logic with minimal configuration.

Downloads
1,485,683
Stars
57,247
Last published
Feb 25, 2026
Last commit
1 hour ago
License
NOASSERTION