--- title: Installation description: Official guide to install Jekyll on macOS, GNU/Linux or Windows. permalink: /docs/installation/ --- Jekyll is a [Ruby Gem](http://guides.rubygems.org/rubygems-basics/), and can be installed on most systems. - [Requirements](#requirements) - [Install Jekyll on macOS](#macOS) - [Install Jekyll on Ubuntu Linux](#ubuntu) - [Install Jekyll on Windows](../windows/) - [Upgrade Jekyll](#upgrade-jekyll) ## Requirements Before you start, make sure your system has the following: - [Ruby](https://www.ruby-lang.org/en/downloads/) version 2.2.5 or above, including all development headers (ruby installation can be checked by running `ruby -v`) - [RubyGems](https://rubygems.org/pages/download) (which you can check by running `gem -v`) - [GCC](https://gcc.gnu.org/install/) and [Make](https://www.gnu.org/software/make/) (in case your system doesn't have them installed, which you can check by running `gcc -v`,`g++ -v` and `make -v` in your system's command line interface) ## Install on macOS {#macOS} We only cover macOS High Sierra 10.13 here, which comes with Ruby 2.3.3, older systems will need to [install a more recent Ruby version via Homebrew](#homebrew). First, you need to install the command-line tools to be able to compile native extensions, open a terminal and run: ```sh xcode-select --install ``` ### Set up Ruby included with the OS Check your Ruby version meet our requirements: ```sh ruby -v 2.3.3 ``` Great, let's install Jekyll. We also need [Bundler](https://bundler.io/) to help us handle [plugins](../plugins) and [themes](../themes): ```sh gem install bundler jekyll ``` That's it, you're ready to go, either by installing our [default minimal blog theme](https://github.com/jekyll/minima) with `jekyll new jekyll-website` or by starting from scratch: ```sh mkdir jekyll-website cd jekyll-website # Create a Gemfile bundle init # Add Jekyll bundle add jekyll # Install gems bundle install ``` Great, from there you can now either use a [theme](../themes/) or [create your own layouts](../templates/). ### Install a newer Ruby version via Homebrew {#homebrew} If you wish to install the latest version of Ruby and get faster builds, we recommend to do it via [Homebrew](https://brew.sh) a handy package manager for macOS. ```sh /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" brew install ruby ruby -v ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17] ``` Yay! Now you have a shiny Ruby on your system! ### Install multiple Ruby versions with rbenv {#rbenv} Developers often use [rbenv](https://github.com/rbenv/rbenv) to manage multiple Ruby versions. This can be useful if you want to run the same Ruby version used by [GitHub Pages](https://pages.github.com/versions/) or [Netlify](https://www.netlify.com/docs/#ruby) for instance. ```sh # Install rbenv and ruby-build brew install rbenv # Setup rbenv integration to your shell rbenv init # Check your install curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor | bash ``` Restart your terminal for changes to take effect. Now we can install the Ruby version of our choice, let's go with Ruby 2.5.1 here: ```sh rbenv install 2.5.1 rbenv global 2.5.1 ruby -v ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17] ``` That's it! Head over [rbenv command references](https://github.com/rbenv/rbenv#command-reference) to learn how to use different versions of Ruby in your projects.