Astro
The web framework for content-driven websites
Founded
2021
Starting Price
Free
Category
Developer Tools
Last updated March 17, 2026
About Astro
Astro is a modern web framework that ships zero JavaScript by default, using an islands architecture for selective hydration. It's ideal for developer blogs because it combines the speed of static HTML with the ability to use React, Vue, Svelte, or any UI framework for interactive components — only loading JS where actually needed.
Pros & Cons
Pros
- Ships zero JavaScript by default — fastest page loads of any modern framework
- Content collections provide type-safe Markdown authoring with frontmatter validation
- Framework-agnostic — use React, Vue, Svelte, or none at all
- Excellent developer experience with hot module replacement and clear error messages
- Growing ecosystem with official integrations for Tailwind, MDX, Sitemap, etc.
Key Features
Zero JavaScript by default
Ships pure HTML with no client-side JS unless you opt in
Islands architecture
Selective component hydration — only interactive components load JavaScript
Framework-agnostic
Use React, Vue, Svelte, Solid, or Preact components in the same project
Content collections
Built-in type-safe Markdown/MDX authoring with frontmatter validation
Built-in optimizations
Automatic sitemap generation, RSS feeds, and image optimization
File-based routing
Pages map directly to file structure for intuitive URL management
View Transitions API
Native browser page transitions for smooth SPA-like navigation
Server-side rendering
Optional SSR mode for dynamic content alongside static pages
Pricing
Open Source
Free
- Full framework features
- MIT license
- Community support
Best For
Blogs & Documentation
Build lightning-fast blogs and docs sites with Markdown/MDX content collections and zero JS overhead
Marketing Websites
Create high-performance landing pages and marketing sites that load instantly for better conversions
E-commerce Catalogs
Build product pages and catalogs with static generation for SEO and selective interactivity for carts
Portfolio Sites
Showcase work with beautifully designed, fast-loading pages using any UI framework you prefer
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