- Astro JS Tutorial
- Astro JS - Home
- Astro JS - Overview
- Astro JS vs Next JS
- Astro JS vs React JS
- Astro JS Setup
- Astro JS - Installation
- Astro JS - Project Structure
- Astro JS - Pages
- Astro JS Architecture
- Astro JS - Islands
- Astro JS - Islands Architecture
- Astro JS Routing
- Astro JS - Routing
- Astro JS - Dynamic Routing
- Astro JS - Redirecting Routes
- Astro JS - i18n Routing
- Astro JS Configuration
- Astro JS - Configuration
- Astro JS - Editor Setup
- Astro JS - TypeScript Configuration
- Astro JS - Environment Variables
- Astro JS Build UI
- Astro JS - Components
- Astro JS - Slots
- Astro JS - Layouts
- Astro JS - Fonts
- Astro JS - Scripts
- Astro JS Create Website
- Astro JS - Markdown Contents
- Astro JS - Add Images
- Astro JS - Manage Content
- Astro JS - Content Collections
- Astro JS - Data Fetching
- Astro JS Styling and CSS
- Astro JS - Styling
- Astro JS - CSS Integration
- Astro JS - CSS Cascading Order
- Astro JS Integrations
- Astro JS - React Integrations
- Astro JS - Svelte Integrations
- Astro JS - Solid Integrations
- Astro JS - Vue Integrations
- Astro JS Adapters
- Astro JS - Netlify Adapter
- Astro JS - Cloudflare Adapter
- Astro JS Testing and Deployment
- Astro JS - Testing
- Astro JS - Deployment
- Astro JS Advanced Topics
- Astro JS - State Management
- Astro JS - Prefetching
- Astro JS - Middleware
- Astro JS - Endpoints
- Astro JS - Authentication
- Astro JS - Bun Environment
- Astro JS - Docker
- Astro JS - View Transition
- Astro JS - Transition Directives
- Astro JS - Astro DB
- Astro JS - Bundling
- Astro JS Useful Resources
- Astro JS - Interview Questions
- Astro JS - Cheatsheet
Difference between Astro JS vs React JS?
What is React JS?
React is a open-source JavaScript library for building user interfaces. It is developed by Facebook (Meta organization), aims to simplify UI designing and development process. ReactJS uses component based architecture which simplify building small, large scale, or even complex applications. ReactJS provides minimal and solid feature set to kick-start a web application.
Features of React JS
- Component-based architecture
- Only Client-side rendering supported.
- Comparatively slower than Next.js and Astro
- Also supports development of mobile applications.
What is Astro JS?
Astro is a new JavaScript framework optimized for static site generation, with support for server-side rendering. Astro focuses of optimizing content focused website which are not regularly updated. For example, once a blog page has been written and published, its contents are unlikely to be modified, making it appropriate for serving from static hosting.
Features of Astro
- Uses Island Architecture to reduce JavaScript load.
- Highly optimized for static content as no JavaScript is loaded by default.
- Supports SSG by default, but can also be configured to support SSR
- Markdown/MDX support
- Includes optimization for images and other assets
Features Comparison Astro vs React JS
Here is tabular comparison of Astro vs React JS features.
| Feature | Astro.js | React.js |
|---|---|---|
| Framework Type | Static site generator | JavaScript UI library |
| Rendering | SSG by default; supports SSR with adapters | Client-side rendering (CSR), SSR, SSG with Next.js |
| Component Support | Supports multiple UI frameworks (React, Vue, Svelte, Solid, etc.) | Uses only React components |
| Performance | Highly optimized for static content; ships zero JS by default | Performance depends on hydration and JavaScript bundling |
| Server-side Support | Requires adapters for SSR | Requires Next.js or another framework for SSR |
| Hydration | Islands architecture loads JavaScript only where needed | Full React hydration by default |
| State Management | No built-in state management (relies on framework components) | Uses React hooks, Context API, Redux, etc. |
| Routing | File-based routing (like Next.js) | Requires React Router or a framework like Next.js |
| Bundling & Optimization | Optimized for minimal client-side JS; removes unused JavaScript | React apps can be optimized with tools like Webpack, Vite |
| Middleware | No built-in middleware support | No middleware by default (handled by frameworks like Next.js) |
| Deployment | Works well with static hosts (Vercel, Netlify, Cloudflare) | Requires a hosting service that supports React apps |
| Best Use Case | Content-heavy sites, blogs, documentation | Interactive UI designing, SPAs, dashboards |
Architecture Comparison Astro vs React JS
Here we made detailed comparison of Astro and Next.js architecture using flowchart.
React JS Architecture
The flowchart below, shows the working of React JS framework. React uses JavaScript-XML (JSX) file to create UI components, which is a combination of HTML and JavaScript code. Then react component combines with CSS to create a virtual DOM in browser.
Astro Architecture
The flowchart shows the working of Astro framework. Astro supports any frontend framework for UI code, which then combined with backend code to generate full stack website. The static websites can be hosted on platforms like GitHub, Firebase, and AWS S3, while server-rendered websites are commonly hosted on Vercel, Netlify, or AWS S3.
