Instant TypeScript
Execution Environment
A powerful, secure, and instant TypeScript playground running entirely in your browser. Featuring a full Node.js environment for a complete development experience.
// Write to a file
await writeFile('message.txt', 'Hello File System!');
// Read it back
const content = await readFile('message.txt', 'utf-8');
console.log(content);
Everything you need to build
A complete development environment in your browser. No setup required.
Smart NPM Support
Install any package directly in the browser. Just import it, and we handle the magic resolution
and installation.
Snippet Manager
Save your favorite code patterns and reuse them instantly. Copy to clipboard with one click or insert directly into your code.
Secure Env Vars
Manage API keys and secrets securely. Define environment variables that are accessible in your code via
process.env.
VS Code Experience
Built on Monaco Editor. Enjoy your favorite shortcuts, command palette, multi-tab editing, and IntelliSense.
Multiple Themes
Customize your workspace with premium themes like Dracula, Monokai, Nord, Solarized, and GitHub Light/Dark.
Native TypeScript
First-class TypeScript support with zero configuration. Type-checking, auto-completion, and immediate transpilation.