htreeml is a command-line tool written in Node for visualizing HTML DOM trees.
npm install -g htreeml
htreeml accepts a single argument - filename - which represents the .html file that you would like to visualize.
For example, to visualize the DOM for the file index.html:
htreeml index.html
htreeml was developed by Tushar Ghate
htreeml is available under the MIT license.