React Web App Builder
Build a React web app in minutes for free with AI. Write in plain English or tap buttons to create your app.
How to Use the React Web App Builder
React Web App Builder Example
Built with Replit.
Build your vision in minutes for free without writing a single line of code.
Prompting the React Web App Builder
Build a React single-page app with React Router for client-side routing, centralized state via Context/Redux, lazy-loaded route/component chunks via dynamic imports, and real-time updates using WebSockets or SSE.
Build a React PWA with a Service Worker that caches critical assets and routes for offline use, a web app manifest enabling Add to Home Screen, Push API-based push notifications for timely updates, and Background Sync to queue offline actions and sync when connectivity returns.
Build an SSR React web app that renders HTML on the server for instant first paint then hydrates on the client, serves complete SEO meta tags and structured data from the server, edge-caches SSR responses for popular routes worldwide, and securely fetches protected data on the server using cookies or tokens to avoid CORS and keep secrets hidden.
Build a React static site that pre-renders all public routes at build time, supports incremental static regeneration for on-demand updates, deploys assets to a global CDN for edge-fast delivery, and sources content from a headless CMS via APIs during builds.
Top React Web App Features by Type
Single Page Application
Client-Side Routing
Use React Router to switch views without full page reloads. This keeps navigation instant and makes the app feel native-fast.
State Management
Manage complex UI state with Context or Redux. Centralized state keeps SPA interactions predictable and performant.
Lazy-Loaded Chunks
Split code with dynamic imports to load routes/components on demand. This reduces initial bundle size and speeds first paint.
Real-Time Updates
Stream live data via WebSockets or SSE. SPAs excel at dynamic UIs that reflect updates without refreshes.
Progressive Web App
Offline Caching
Leverage a Service Worker to cache critical assets and routes. Users can keep working even with flaky or no connectivity.
Add to Home Screen
Provide a web app manifest for installability. This gives a native-like launch experience and boosts re-engagement.
Push Notifications
Send timely updates via the Push API. It drives retention by bringing users back with relevant alerts.
Background Sync
Queue actions offline and sync when the network returns. This preserves user intent and smooths over connectivity gaps.
Server-Side Rendering
Instant First Paint
Render HTML on the server for a fast initial load, then hydrate on the client. This improves perceived performance on slow devices.
SEO Meta Tags
Serve complete meta tags and structured data from the server. Crawlers get full content, improving ranking and share previews.
Edge Caching
Cache SSR responses at the edge for popular routes. Users around the world get low-latency delivery and consistent speed.
Secure Data Fetch
Fetch protected data on the server with cookies or tokens. It reduces exposure of secrets and avoids CORS complexity.
Static Site Generation
Pre-rendered Pages
Generate HTML at build time for all public routes. Ultra-fast loads and zero server compute make it cost-effective.
Incremental Rebuilds
Update pages on demand with ISR or similar. Content stays fresh without full rebuilds or heavy infrastructure.
Global CDN
Deploy static assets to a worldwide CDN. Users get near-instant responses from the closest edge location.
Headless CMS
Source content from a CMS during builds via APIs. Editors can publish quickly while developers keep a clean code pipeline.
The React Web App of Your Dreams
Build your vision in minutes for free without writing a single line of code.
FAQ about the React Web App Builder
What is the React App Builder and how does it help me create a production-ready React application in the browser?
Replit is a browser-based react app builder that lets you create a production-ready react application with zero setup. Start from templates and AI-generated building blocks, then refine user interfaces and react.js components in a full code editor with live preview. The AI Agent scaffolds the JavaScript front end and backend, while the Assistant helps debug and explain code as you go. Deploy in minutes with custom domains and encryption—everything runs in your tab.
Can I import my existing project or designs (from GitHub or Figma) and keep my codebase?
Yes—import repos from GitHub in minutes and keep your codebase intact, including your react components and design system. You can also import from Figma to convert designs into functional React UIs, then customize with templates or any custom component you need. Continue editing in code or with AI, and maintain your workflow while collaborating in the same workspace.
How do AI tools assist with generating features, debugging, and explaining React code?
Replit Agent generates functionality from natural language, building pages, components, routing, and API hooks for react code end to end. The Assistant debugs errors, explains code like step-by-step tutorials, and makes safe code edits with previewable diffs. Both tools can wire up data fetching to your api or services and are ideal for rapidly creating internal tools and production features.
Does the builder support full-stack apps with APIs, databases, routing, and data fetching?
Yes—build full-stack web applications with hosted deploys, built-in databases, and API integrations configured by AI. Agent can add authentication, payments, and storage, while you define routing and data fetching patterns in your preferred stack. You can bring REST or GraphQL libraries, connect external data sources, and ship a cloud-hosted app from the same workspace.
Is there a drag-and-drop UI editor, and when should I edit code directly?
Replit provides a lightweight visual editor for drag and drop–style tweaks to frontend UI—edit text, images, styles, and HTML-linked attributes directly in the preview. For structure, state, and logic in react components (or any custom component in your design system), edit code or use AI to generate precise changes. Use the visual editor for quick polish; switch to code for complex behavior.
Which React frameworks are supported (React.js, Next.js), and can I mix templates with custom components?
Replit supports React.js and popular react framework choices you bring, including Next.js projects imported from GitHub or created with AI. You can mix templates with your own react components, set up routing, and iterate quickly in the editor. Start from a template or AI-generated scaffold, then extend with custom components as your app grows.
How do I deploy my web app and connect with mobile or native platforms?
Deploy web apps to the cloud in a few clicks, add a custom domain, and enable encryption—all from the browser. For mobile and native apps on iOS or Android, host your backend and APIs on Replit and connect them to React Native or Expo clients. You can also use the Replit mobile app to build and iterate on your web applications from your phone or tablet.
How can my team collaborate, manage versions, and export to GitHub repos?
Collaborate in real time with your react team, pair-build with AI, and track changes using built-in version control plus automatic checkpoints and rollbacks. Import from GitHub to continue working on existing repos, keep your codebase organized, and share work via deploys or Remix. Version control integration lets you manage history and coordinate across internal tools and tutorials for smooth onboarding.