HTML to PNG with Ruby and Playwright

Install Playwright and the Playwright client for Ruby

npm install playwright
gem install playwright-ruby-client

Convert HTML to PNG and save to file

require 'playwright'

Playwright.create(playwright_cli_executable_path: './node_modules/.bin/playwright') do |playwright|
  playwright.chromium.launch do |browser|
    page = browser.new_page
    page.set_content('<html><body><h1>Hello World</h1></body></html>')
    page.screenshot(path: './html.png')
  end
end

Find out how to change the size of the viewport with Ruby and Playwright.

That was 9 lines of code — plus a browser to run in production

Keeping headless browsers fed, patched and scaled is a job in itself. We built Urlbox so the same screenshot is one API call:

curl "https://api.urlbox.com/v1/YOUR_API_KEY/png?url=https://example.com"

Try the Urlbox screenshot API — free trial, no browser babysitting.