React
Open SourceThe library for web and native user interfaces.
Published 29 May 2026 · Last updated 30 September 2026
Scores
Popularity5/5
The dominant frontend UI library globally; used by Meta, Airbnb, Netflix, and millions of projects.
Learning Curve4/5
JSX, hooks, and component lifecycle require a significant mental model shift.
Flexibility5/5
Component model is highly composable with no opinions on state management or routing.
Performance4/5
Virtual DOM diffing is efficient; React 18 concurrent rendering improves responsiveness.
Portability4/5
Component patterns are widely copied; skills transfer comfortably to Vue and Svelte.
About React
React is a declarative, component-based JavaScript library for building user interfaces. Originally open-sourced by Facebook in 2013, it introduced a component model and virtual DOM that became the dominant paradigm for frontend development.
React renders UI as a tree of components — pure functions (or classes) that accept props and return JSX. State changes trigger efficient reconciliation: React diffs the new virtual DOM against the previous one and applies only the minimal set of DOM mutations needed.
React 19 brought major improvements: the React Compiler automatically memoises components, eliminating most manual useMemo/useCallback calls; Server Components are zero-bundle-size components that render on the server, improving performance and DX; Actions provide built-in async state transitions for form submissions and mutations; and the use() hook reads resources (Promises, Context) inline, simplifying async patterns.
React is intentionally un-opinionated about routing, state management, and data fetching, which has led to a rich meta-framework ecosystem: Next.js, Remix, Expo (mobile), and TanStack Start all build on React.
React, React Native, and supporting projects like JSX are now owned by the React Foundation, an independent foundation hosted by the Linux Foundation, ensuring long-term open governance.
Key Features
- Declarative, component-based UI model
- Virtual DOM with efficient reconciliation
- React 19 Compiler — automatic memoisation
- Server Components for zero-bundle server rendering
- Hooks system (useState, useEffect, useContext, etc.)
- React Native for cross-platform iOS and Android
- First-class TypeScript support
- Massive ecosystem of meta-frameworks (Next.js, Remix)
Pros
- Dominant adoption — 82% of JS developers use it (State of JS 2024)
- Massive community with abundant tutorials, libraries, and tooling
- Highly flexible — no opinions on routing, state, or data fetching
- React Native enables code-sharing between web and mobile
- React 19 Compiler drastically reduces performance boilerplate
- Long-term stability backed by Meta and the new React Foundation
Cons
- Not a full framework — routing, state, and data-fetching need extra libraries
- Hooks have a steep learning curve; misuse causes subtle bugs and re-render issues
- JSX syntax is unfamiliar to developers coming from HTML/template-based frameworks
- Bundle size can grow large without disciplined code-splitting
- Rapid ecosystem churn (e.g. the Create React App deprecation) can invalidate existing knowledge
React Pricing
Open SourceTech Stacks with React
MERN Stack
ProjectMongoDB, Express, React, Node.js: the classic JavaScript full-stack. A well-trodden path with massive community support and job-market demand.
Frontend
Programming
Databases
Hosting
Authentication
Supabase + Next.js
ProjectThe fastest way to launch a modern web app. Next.js handles the frontend and API routes; Supabase provides Postgres, auth, realtime, and storage out of the box.
Python Web (FastAPI + React)
ProjectA clean separation of concerns: React on the frontend, FastAPI serving a typed REST API, and PostgreSQL for persistent storage (MySQL, MariaDB, and serverless Postgres hosts are also available). Docker keeps environments consistent.
Tools Related to React
Works well with React(8)
Plasmo is a browser extension framework built on React — React is its component model; every Plasmo extension is a React app compiled by Plasmo's build system.
Astro supports React as a UI component framework via @astrojs/react — React components can be embedded in Astro pages as interactive islands while the rest stays static HTML.
WXT is a browser extension framework that supports React as its UI component layer — React components power the popup and options pages.
Supabase + React is a popular full-stack combo — the @supabase/supabase-js client integrates naturally with React hooks for real-time subscriptions, auth state, and data fetching.
Firebase is the most common backend for React SPAs — the @firebase/app JS SDK provides Firestore, Auth, and Storage hooks; often used as a quick backend without writing server code.
Convex is a real-time BaaS with a first-class React SDK — useQuery and useMutation hooks sync server state to React components without manual data fetching.
Integrates with React(5)
Laravel + React is a full-stack PHP pattern — Laravel Inertia.js with React is a first-party supported option for building React SPAs backed by a Laravel API without a separate JSON API layer.
Rork's web output is built with Vite and React, the documented stack behind its web code generation; its iOS and Android outputs use native Swift and Kotlin instead.
Clerk has a first-class React SDK (@clerk/react) with pre-built sign-in/sign-up components and hooks — commonly paired with React in Next.js projects.
Auth0 has an official React SDK — pre-built hooks (useAuth0) and components handle login, logout, and token management; commonly used in React SPAs that need enterprise-grade auth.
The AI SDK's @ai-sdk/react package provides useChat, useCompletion, and useObject hooks for streaming chat and generative UI in React apps.
Built on (1)
React is a JavaScript library for building user interfaces, with components written in JavaScript or TypeScript using JSX.
Frameworks built on React(2)
Next.js is a React framework with SSR, routing, and optimization built in.
React Native is React's sibling framework for native mobile apps.
Tools that enforce React(2)
Lovable generates React frontends — React is the component model for all Lovable-scaffolded projects alongside Supabase as the backend.
v0 generates React components using shadcn/ui — React is its component model; every v0 output is a React component.
Alternatives to React(4)
Both component-based JS UI frameworks; Vue has a gentler learning curve, React has a larger ecosystem and is backed by Meta.
React is a focused UI library; Angular is a full opinionated framework with DI and CLI — Angular suits large enterprise teams, React suits flexible architectures.
htmx enhances server-rendered HTML with partial updates — no JS framework needed; React builds full client-side UIs.
Svelte compiles to plain JS with no runtime; React uses a virtual DOM — Svelte bundles are smaller but React has a far bigger ecosystem.
Vendor
Meta
Website →Tags
Details
- License
- MIT
- Maintained
- Yes
- Primary language
- JavaScript
- Domain
- Frontend
- GitHub stars
- 251k
- Stars updated
- 2026-09-23