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Introduction

Mount0 is a high-performance virtual filesystem designed for developers who need speed, flexibility, and zero-disk footprint.

Why Mount0?​

Traditional filesystems interact with physical disks, which can be slow and cumbersome for transient data tasks like:

  • Testing: creating thousands of temporary files for unit tests.
  • Mocking: Simulating complex directory structures without polluting your hard drive.
  • Security: Handling sensitive data in-memory without ever writing to disk.

Mount0 solves this by providing a FUSE-based interface to an in-memory filesystem structure.

Key Features​

  • 🚀 Blazing Fast: All operations happen in memory.
  • 🛡️ Secure: Data is wiped instantly when the process stops.
  • 🔗 FUSE Powered: Works with standard tools (ls, grep, cat) just like a real disk.
  • 🛠️ Developer First: TypeScript API for programmatic control.

Getting Started​

npm install mount0
import { Mount0 } from 'mount0';

const fs = new Mount0();
await fs.mount('/tmp/my-virtual-drive');

// Write to the virtual drive
await fs.writeFile('/hello.txt', 'Hello World');