Compress Jekyll website with jekyll-press

To compress your output files (from the _site folder), you can use jekyll-press.

It’s very easy to install, configure and enable.

Install g++

Install build-essential and g++:

sudo apt-get install build-essential g++

Install the bundler gem

sudo gem install bundler

Install jekyll-press

In the root folder of your Jekyll instance, create a file Gemfile, and add this:

source ''

gem 'jekyll'
gem 'execjs'
gem 'therubyracer'
gem 'jekyll-press'

Then execute:

$ bundle

Enable jekyll-press

Create the following plugin in your project’s _plugins directory.

# _plugins/bundler.rb
require "rubygems"
require "bundler/setup"

This will automatically require all of the gems specified in your Gemfile.

Configure jekyll-press

In your _congif.yml file, add this block:

  exclude: 'atom.xml' # Exclude files from processing - file name, glob pattern or array of file names and glob patterns
  js_options: {}      # js minifier options
  css_options: {}     # css minifier options
  html_options: {}    # html minifier options


Next time you rebuild your website, the output files will be compressed.