AST2Dot

require RUBY_VERSION >= 2.6.0

gem 'ast2dot'

10.times do |n|
  puts n
end

ast2dot example.rb | dot -Tpng -o example.png | open example.png 

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Ast2dot project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.