Nacelle Lab

Node 22 · browser runtime

No execution backend
Runtime idle

Disposable runtime

Run Node without
leaving the browser.

A fast scratchpad for scripts, packages, and ideas—running entirely inside this tab.

v22 Node API VFS Isolated files npm Package ready

Workspace

/node/script.js

Exact versions · ephemeral cache
Ctrl/⌘+Enter

Process output

Terminal

nacelle Runtime initialized. Run a script to begin.
stdout stderr browser://nacelle