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 400,000 packages pre-installed, including cli-mandelbrot with all npm packages installed. Try it out:

cli-mandelbrot lists no main file and has no index.js, so it can't be directly required. If this is a mistake, please let us know. It may however contain internal files that you can require manually:

// require("cli-mandelbrot/[??]")

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

cli-mandelbrot v1.0.4

A command line viewer of the Mandelbrot set


Build Status NPM Version License Dependency Status devDependency Status

View the Mandelbrot set from your terminal


npm install -g cli-mandelbrot



Example screen shot

Use the 'wasd' keys to move around, 'r' and 'f' to zoom in and out, 't' and 'f' to calculate more or less iterations, 'q' to toggle the help text, and 'o' to quit.

Example screen shot


nvm use 6 # or nvm install 6
git clone
cd cli-mandelbrot
npm i
npm test


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