Sign Up for Free

RunKit +

Try any Node.js package right in your browser

This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including environ with all npm packages installed. Try it out:

var environ = require("environ")

This service is provided by RunKit and is not affiliated with npm, Inc or the package authors.

environ v3.0.3

Pretty secure detection of Node, browser, Electron, Deno, and other execution environments.

RunKit is a free, in-browser JavaScript dev environment for prototyping Node.js code, with every npm package installed. Sign up to share your code.
Sign Up for Free