React Online Compiler

🌐 React Online Compiler / Playground

If you want to write, run, and test React code online without setting up a local environment, you can use React online compilers or playgrounds. These are great for:

  • Learning React

  • Testing code snippets

  • Sharing code examples

  • Quick prototyping

🔹 Popular React Online Compilers

Tool Features Link
CodeSandbox Full React environment, npm packages, live preview, project sharing https://codesandbox.io/s/new
StackBlitz Instant React projects, online IDE, live preview https://stackblitz.com/fork/react
CodePen Simple React snippets, live preview, supports JSX https://codepen.io/pen/
JSFiddle Quick testing for small React examples https://jsfiddle.net/
PlayCode Online React editor with live preview https://playcode.io/react
React Playground Beginner-friendly, JSX live preview https://react-playground.com/

🔹 How to Use Online React Compiler

Example: CodeSandbox

  1. Open CodeSandbox

  2. Choose React template

  3. Write your React code in App.js

  4. See live preview on the right

  5. Install additional npm packages if needed

  6. Share your project using a link

Example: Simple React Code in Online Compiler


 

✅ This will run instantly in the browser with live preview.

🔹 Advantages of Online React Compilers

  • No setup required

  • Run React code anywhere (PC, tablet)

  • Shareable links for collaboration

  • Good for learning and experimentation

🔹 Tips for Beginners

  1. Start with small components

  2. Use console.log for debugging

  3. Experiment with hooks like useState and useEffect

  4. Try custom hooks and see how they work

  5. Share your code with friends or mentors

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