UVM (Universal Virtual Machine)

UVM (Universal Virtual Machine) is a JavaScript library designed to provide a consistent API for executing code in isolated contexts, leveraging Node.js Worker Threads and Web Workers in browser environments. This abstraction simplifies cross-context communication via an event emitter-based bridge, enabling developers to run potentially untrusted or computationally intensive code without blocking the main thread. Currently at version 4.0.1 (last published 10 months ago, as of current date), the library appears to be actively maintained. Its key differentiator lies in offering a 'universal' approach to sandboxed code execution, providing a unified development experience across different JavaScript runtimes, making it suitable for applications requiring secure and efficient off-main-thread processing. The project originates from Postman Labs.