WebVM.io takes you straight to a Web-based 'server-less' virtual Linux environment running directly in your browser. It's powered by the JavaScript and WebAssembly-based CheerpX x86 virtualization engine... a neat demonstration of how far Web technology has come. It has Node v10.24.0 'installed' if you want to try that, but beware it takes a good 20 seconds to load on my machine.
Here's a write-up about how it works,
JavaScript Weekly Issue 575: February 4, 2022
