Learn what React Compiler does and how it automatically optimizes your React application by handling memoization for you, eliminating the need for manual useMemo, useCallback, and React.memo.

May 15, 2024 - The key thing to understand is that it actually flips React's default rendering behavior upside down. Instead of "recursively render all children by default", with the compiler it now effectively behaves the way many people always (wrongly) assumed it behaved: it will now only re-render child components if the input values actually changed!!.

The compiler is a tool developed by the React core team. It plugs into our build system, grabs the original components' code, and tries to convert it into code where components, their props, and hooks' dependencies are memoized by default.

OneCompiler's ReactJS online editor helps you to write, compile, run and view ReactJS code online. It have all the features like auto-completion, syntax highlighting, etc.

React Compiler can be installed across several build tools such as Babel, Vite, Metro, and Rsbuild. React Compiler is primarily a light Babel plugin wrapper around the core compiler, which was designed to be decoupled from Babel itself.

May 22, 2024 - We’ll use Vite for this example because the other frameworks already have React 19 and Vite currently sets up with React 18.2.0. pnpm create vite r18-with-compiler --template react

Experience the power of React with NextLeap's Online Compiler. Write, compile, and debug React applications online in real-time. Boost your productivity and enhance your React development workflow with our intuitive platform.

May 15, 2024 - It does make React faster, because it flips the default behavior from "always rerender recursively been if data didn't change" to "only rerender children if data did change", so fewer components will render each time. Closer in spirit to how something like Solid works, albeit a different (and less granular) approach. ... I was a bit unprecise in my language. The compiler output doesn't translate 1:1 to a fully memoized app written in user code.

October 7, 2025 - React Compiler is a build-time tool that optimizes your React app through automatic memoization. Last year, we published React Compiler’s first beta and received lots of great feedback and contributions.

August 27, 2024 - In this tutorial, you'll learn how the React compiler can help you write more optimized React applications. React is a user interface library that has been doing its job quite well for over a decade. The component architecture, uni-directional data f...

October 23, 2025 - Next.js includes support for the React Compiler, a tool designed to improve performance by automatically optimizing component rendering.

November 3, 2025 - Learn how to enable and use the React Compiler in Expo apps.

December 16, 2019 - React Compiler by mf4lsb using react, react-bootstrap, react-dom, react-scripts

2 weeks ago - Free React playground to build and test React apps online. Live preview, hot reloading, npm packages, and JSX support. No setup required, start coding React instantly.

July 9, 2024 - 1. They introduced hooks which must be called in the same order for every execution. You can't put hook inside `if`. Hooks are based on magic. This is terrible design · 2. They didn't adopt async/await, inventing their own suspend stuff

Experience our intuitive online React Compiler, the perfect place to write, and test react code instantly in your browser. With real-time preview and zero setup required, our tool makes coding accessible for beginners while providing powerful features for experienced developers.

A create-react-app project based on react and react-dom.