JavaScript Playground

Execute JavaScript e TypeScript online com saída de consola instantânea.

Playground Gratuito Online de JavaScript e TypeScript

Escreva JavaScript ou TypeScript e execute-o instantaneamente no seu navegador. A Dokall transpila TypeScript com esbuild e captura a saída de console.log com o tempo de execução.

Perfeito para aprender, testar trechos de código e depurar algoritmos. Toda a execução acontece localmente no seu navegador - o seu código nunca é enviado para um servidor.

Frequently Asked Questions

What JavaScript features are supported?
The playground runs modern JavaScript (ES2020+) in a sandboxed browser environment. Supports arrow functions, async/await, classes, destructuring, template literals, and most standard library APIs available in browsers.
Can I use npm packages?
The playground runs vanilla JavaScript without npm imports. For testing code that uses external packages, use the browser console or a local Node.js environment. Basic DOM APIs are available.
Is the code executed on a server?
No. Code runs entirely in your browser using a sandboxed execution environment. Nothing is sent to Dokall servers. Console output appears in the playground panel.
Can I share my code?
Copy the code manually to share it. The playground does not generate shareable URLs. For collaborative snippets, use a gist or paste service alongside this tool.
What is the difference between this and the browser console?
Both run JavaScript client-side. The playground provides a dedicated editor with syntax highlighting, a run button, and formatted output panel. The browser console (F12) is better for debugging live pages with full DOM access.