What is a WebContainer and how does it work?

WebContainer is a WebAssembly-based runtime that runs Node.js directly in your browser, eliminating the need for local installation.

How do I upload my project ZIP file?

Simply drag and drop your ZIP file into the circular upload zone, or click to browse and select it from your computer.

What file types are supported for upload?

We support .zip files containing any web project (HTML, CSS, JS, TypeScript, React, Next.js, Vue, Angular, etc.).

Does my project need a package.json file?

Yes, for Node.js-based projects. However, we also support static HTML projects without package.json.

How long does the installation process take?

Installation time depends on your project size and dependencies. Most projects complete in 30-60 seconds.

Is my code stored permanently?

Projects are stored in your browser's memory. For permanent storage, we recommend downloading your project.

Building React Apps Online: The Future of Web Development

The evolution of web development has steadily shifted towards the browser. By leveraging WebAssembly and the WebContainer API, developers can now run a full Node.js runtime natively on the client.

Why Browser-Based Environments?

Zero Configuration: Say goodbye to complex local setups and version mismatch issues.
Security: Untrusted code runs securely in a sandboxed WebAssembly environment.
Accessibility: Develop from any machine, anywhere, simply by opening a browser tab.

The WebContainer Revolution

WebContainers allow us to mount virtual file systems, install dependencies via npm, and run development servers like Next.js or Vite, all locally within the browser. This eliminates the need for cloud-hosted VMs, reducing latency and cost while providing an instant feedback loop for developers.