html-minifier package by running the following command.
npm install html-minifier -g
Then, run the
html-minifier command to minify and clean all the HTML, CSS and JS files in the current directory.
html-minifier --input-dir . --output-dir . --remove-comments --collapse-whitespace --minify-css --minify-js
But sometimes it can be failed to minify and clean all the files due to invalid codes and markup errors. For that kind of situation, try to fix the related file if possible or otherwise run the command targeting a specific file type.
For example, you can minify only the HTML files by running the above command with the
html-minifier --input-dir . --output-dir . --remove-comments --collapse-whitespace --minify-css --minify-js --file-ext html
Likewise, you can run the same command for other file types such as
js by adding them one by one to the
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