Web Development · head to head
Astro vs React
Astro
Web Development
Web framework for content-driven sites shipping minimal JavaScript by default
- From
- Free
- Rated
- -
React
Web Development
A JavaScript library for building user interfaces
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Astro limited to static site generation and server-side rendering; real-time applications requiring constant client-server communication are unsuitable; React jSX requires a build step using Webpack, Babel, or other transpilers to convert to browser-executable JavaScript
Where they differ
Only the attributes on which Astro and React actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Web Development).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Astro
Nothing recorded that React does not also cover.
Only in React
- Component-based architecture
- Virtual DOM
- JSX syntax
- Unidirectional data flow
- React Hooks
- Server-side rendering
- Hot reloading
- Developer tools
What people use each for
The jobs each tool is most often brought in to do.
Astro
- Marketing websites and landing pages prioritising performance and SEOnot React
- Documentation and blog platforms with high page volumesnot React
- E-commerce storefronts where page speed affects conversion ratesnot React
- Portfolio and personal websites showcasing static content with minimal interactivitynot React
- Multi-language sites requiring efficient content management and translationnot React
- JAMstack projects integrating headless CMS platforms (Contentful, Sanity, Strapi)not React
React
- Web application developmentnot Astro
- Single-page applicationsnot Astro
- Interactive user interfacesnot Astro
- Mobile app developmentnot Astro
- Component librariesnot Astro
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Astro
- Limited to static site generation and server-side rendering; real-time applications requiring constant client-server communication are unsuitable
- Smaller ecosystem compared to Next.js; fewer third-party component libraries and integrations readily available
- Build time increases with large content volumes (1,000+ pages); incremental builds not yet as optimised as Gatsby or Next.js
- API routes and serverless functions are less mature than Next.js; complex backend integrations require additional tooling
React
- JSX requires a build step using Webpack, Babel, or other transpilers to convert to browser-executable JavaScript
- Routing and state management are separate dependencies, not included in core library
- Configuration complexity for advanced features like server-side rendering without a meta-framework
- Requires choosing and configuring build tools and development environment setup
Pricing, plan by plan
Astro
FreeNo published plan breakdown. See the Astro review.
React
Free- Open SourceFree
- Component-based architecture
- Virtual DOM
- JSX syntax
Which should you pick?
Choose Astro if
- You want to start without paying.
- You work on Web, Node.js, Cloudflare, Vercel, Netlify, AWS, Deno.
Choose React if
- You need component-based architecture.
- You want to start without paying.
- You work on Web, Mobile.
- You also want virtual dom.
Questions people ask
- Is Astro or React better?
- Neither clearly leads. Astro starts at Free and React at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Astro or React?
- Astro starts at Free and React at Free.
- Does Astro or React run on more platforms?
- Astro runs on Web, Node.js, Cloudflare, Vercel, Netlify, AWS, Deno. React runs on Web, Mobile.
- Can I use Astro for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Astro best used for?
- Astro is most often used for marketing websites and landing pages prioritising performance and seo, documentation and blog platforms with high page volumes, e-commerce storefronts where page speed affects conversion rates, portfolio and personal websites showcasing static content with minimal interactivity. Of those, marketing websites and landing pages prioritising performance and seo and documentation and blog platforms with high page volumes are not what React is typically brought in for.
- What can Astro do that React cannot?
- React covers Component-based architecture, Virtual DOM, JSX syntax, Unidirectional data flow.
Answered from the vendors’ own pages
Astro: Is Astro free?
Yes. Astro is free and open-source under MIT licence. Deployment hosting (Vercel, Netlify, Cloudflare, AWS) may incur costs depending on usage.
SourceReact: Is React free to use commercially?
Yes. React is distributed under the MIT open-source license, which permits free usage for both personal and commercial projects without licensing fees or restrictions.
SourceAstro: Can I use React components in Astro?
Yes. Astro supports React, Vue, Svelte, Preact, and Solid components. Components are server-rendered by default; add client: directives to enable client-side interactivity only where needed.
SourceReact: Does React support TypeScript?
Yes. React works seamlessly with TypeScript for type-safe component development. TypeScript provides static type checking for React components, props, and state, improving code reliability and developer experience.
SourceAstro: How does Astro compare to Next.js for performance?
Astro achieves superior Core Web Vitals scores (66% pass rate vs Next.js 30%) by shipping minimal JavaScript. Next.js defaults to client-side rendering; Astro renders on the server by default.
SourceReact: Do I need a build step to use React?
If you use JSX, yes. JSX requires transpilation by a build tool like Webpack and Babel before browsers can execute it. However, React can be used without JSX by calling React.createElement directly, which does not require a build step.
SourceReact: Can I build offline-capable applications with React?
Yes. React supports building Progressive Web Apps (PWAs) with service workers and IndexedDB for offline functionality. Create React App includes service worker setup, though it must be manually enabled for production use.
Source