html minify - Robuta Search

https://wordpress.org/support/plugin/lightweight-html-minify/reviews/?filter=4

https://quadlayers.com/minify-wordpress-files

Want to minify CSS, HTML, and JavaScript in WordPress? Follow this guide to minify WordPress static files and make your site faster.

https://github.com/middleman/middleman-minify-html

A HTML whitespace minifier for Middleman. Contribute to middleman/middleman-minify-html development by creating an account on GitHub.

https://codsen.com/os/html-crush/play

A free online web application to minify email templates.

https://github.com/juancarlospaco/css-html-js-minify

StandAlone Async cross-platform Minifier for the Web. - juancarlospaco/css-html-js-minify