How to convert HTML to a base64 image with Selenium and Ruby

The most popular way to do it is with the Grover gem. Grover is a wrapper around Selenium that makes it easy to generate images from HTML.

Install Selenium Webdrivers for Ruby

gem install webdrivers

Get the base64 encoded image of some HTML

require 'webdrivers'

driver = Selenium::WebDriver.for :chrome

driver.get ""

@image = driver.screenshot_as(:base64)

puts @image