What this tool does
Execute JavaScript code in-browser and display console output. Great for quick tests and demos.
Steps
- Paste or type JS into the editor.
- Click Run to execute. See results below.
- Use Clear to reset input and output.
Examples
console.log('Hello');
function add(a,b){ return a+b }
console.log(add(2,3));
Notes
- Runs locally in your browser; avoid long-running loops.
- Not a full debugger; for complex tasks use devtools/IDEs.