Astro vs React

At a Glance

Astro

React

Astro

React

Astro

Pros

The default output is static HTML with zero JavaScript unless you explicitly add interactive components — pages are fast by default+176
Islands architecture lets you use React, Vue, or Svelte components side by side in the same project without committing to one framework+163
Content Collections with TypeScript validation for Markdown files is the cleanest content management DX for developer blogs and docs+148
Build output is genuinely tiny — a blog or marketing site built in Astro will score higher on Core Web Vitals than any SPA alternative+134
The zero-JS default approach means great SEO out of the box without any configuration or SSR tricks+119

Framework

Next.js vs Astro

Framework

Astro vs SvelteKit

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Cons

Interactive app-like features (auth flows, user dashboards) are awkward to build because the framework is optimized for content sites+142
Component hydration has edge cases where partial hydration doesn't behave as expected and debugging the island boundaries is confusing+118
Smaller community than Next.js means fewer third-party plugins and less community support on specific integration problems+93