Build a Blog with Jekyll and GitHub Pages

What Are Jekyll and GitHub Pages?

Jekyll is a static site generator that transforms your plain text content into complete websites. Written in Ruby, Jekyll takes files written in Markdown, HTML, and Liquid templates, then processes them to produce static HTML files ready for deployment. Unlike traditional content management systems that build pages on each visitor request, Jekyll generates all pages once during the build process.

GitHub Pages is a static site hosting service provided free by GitHub. It takes files directly from a repository and publishes them as a website, with native support for Jekyll. When you push changes to your repository, GitHub automatically runs Jekyll to build your site and update the live publication.

Key benefits of this combination:

• Lightning-fast performance with pre-rendered HTML
• Free hosting with automatic builds and deployments
• Full version control through Git
• No databases or server management required
• Portable, future-proof content in Markdown format

For organizations seeking to establish a professional web presence, Jekyll and GitHub Pages offer an excellent starting point that scales with your needs.

Prerequisites and Installation

Before building Jekyll sites, ensure your development environment has the necessary foundations.

Required Tools

Ruby serves as Jekyll's foundation since the tool is written in this language. Jekyll works with Ruby 2.5.0 or later. Check your version with ruby --version.

RubyGems functions as Ruby's package manager and comes bundled with Ruby installations.

Bundler manages Ruby dependencies for your projects, ensuring consistent environments across machines.

Git provides version control essential for GitHub Pages deployment.

Installation

gem install jekyll bundler

Verify installation with jekyll --version to confirm Jekyll is working correctly.

Platform-Specific Notes

Windows: Install Ruby using the RubyInstaller tool, which provides a complete Ruby development environment. After installation, use the RubyGems command prompt that comes with RubyInstaller. Consider enabling long file path support in Windows 10/11 for smoother Jekyll operation.

macOS: Ruby comes pre-installed, but using a version manager like rbenv or RVM is recommended for managing multiple Ruby versions. Homebrew users can install Ruby via brew install ruby for a more recent version. The system Ruby requires admin privileges for gem installation, so a version manager provides better isolation.

Linux: Most distributions include Ruby in their package managers. Ubuntu/Debian users install with sudo apt-get install ruby-full build-essential. Fedora users use sudo dnf install ruby. Consider using rbenv or RVM for version management, especially if you work on multiple Ruby projects.

For detailed platform-specific guidance, refer to the official Jekyll installation documentation.

Our web development team can help you set up your development environment and troubleshoot any technical challenges.

Creating Your First Jekyll Site

With Jekyll installed, scaffold your first site with built-in templates and sensible defaults.

Commands to Get Started

jekyll new my-awesome-site
cd my-awesome-site
bundle install
bundle exec jekyll serve

The jekyll new command creates a complete project structure with sample posts, default configurations, and a minimal theme. The command may take a moment to complete as it downloads dependencies and sets up the initial structure.

What Gets Created

When you run jekyll new, Jekyll creates the following directory structure:

• _posts/ - Contains a sample "Welcome to Jekyll" post
• _config.yml - Site configuration file with basic settings
• index.md - Homepage with default content
• Gemfile - Declares Ruby dependencies including Jekyll and the theme
• .gitignore - Ignores the built _site folder

The bundle install command reads your Gemfile and installs all required gems. The Gemfile ensures consistent builds across different machines, which becomes critical when deploying to GitHub Pages where gem versions may differ from your local environment.

Local Preview

Run bundle exec jekyll serve to start a local development server. Your site appears at http://localhost:4000. The server watches for changes and rebuilds automatically, enabling rapid development without restarting. This workflow lets you write content, see previews instantly, and iterate efficiently on design and structure.

Once your site is live, consider implementing SEO best practices to improve discoverability and organic traffic.

Understanding Jekyll's Directory Structure

Jekyll's organized structure separates content from configuration and templates, creating a maintainable system.

Key Folders and Files

How They Work Together

The _posts directory holds your blog content. Each file follows the naming convention YYYY-MM-DD-title.md. Jekyll reads these files, applies the layout specified in front matter, and generates static HTML pages. The date in the filename determines publication order and appears in URLs by default.

Layouts in _layouts wrap your content with consistent HTML structure. A typical setup might include a base layout for common elements (DOCTYPE, head, body tags), a default layout for general pages, and a post layout for blog entries. Each layout references the next through Liquid's content variable, creating a hierarchy.

Includes in _includes are reusable components like navigation headers, footers, and social link sections. Layouts and pages include these using Liquid tags: {% include header.html %}. This modularity keeps layouts clean while enabling component reuse across different templates.

The _config.yml file centralizes site settings. Jekyll reads this file once during build, making values available throughout your templates. Configuration includes site title, URL, navigation menus, plugin settings, and custom variables for your specific needs.

For teams building multiple sites, consider how this structure aligns with broader web development practices.

Creating Content with Markdown

Markdown forms Jekyll's content workflow--lightweight markup that stays readable while formatting elegantly.

Front Matter

Each post begins with YAML front matter defining metadata:

---
layout: post
title: "My First Jekyll Blog Post"
date: 2025-07-08 10:00:00 +0000
categories: [jekyll, tutorial]
---

Example Blog Post

---
layout: post
title: "Getting Started with Static Site Generators"
date: 2025-07-08 14:30:00 +0000
categories: [static-sites, jekyll, tutorial]
---

## Why Static Sites?

Static sites offer remarkable advantages for content-focused projects. They load quickly, resist common security vulnerabilities, and deploy effortlessly.

### Key Benefits

- **Performance**: Pre-rendered HTML delivers instantly
- **Security**: No databases means fewer attack vectors
- **Simplicity**: Version-controlled content in plain text

Here's a code example:

```ruby
puts "Hello, Jekyll!"

Static site generators represent the future of content publishing.

Conclusion

Whether you're building a personal blog or documentation, static sites provide an excellent foundation for your web development projects.

For more on content strategy, explore our content marketing services.

Customizing Your Site

Jekyll's configuration system offers extensive customization through _config.yml without requiring code changes.

Configuration Options

Basic settings control your site's identity and URLs. Theme changes require a single line with theme: themename, supported by bundle install to fetch the gem. Common configuration options include:

• title and description - Site identity displayed in templates
• url and baseurl - Canonical URLs for asset generation
• theme - Visual design applied to your content
• plugins - Jekyll plugins that extend functionality
• defaults - Default front matter values for content types

Theming

Jekyll themes change your site's appearance dramatically with minimal effort. The default Minima theme provides a clean, responsive blog design suitable for most projects. Alternative themes from JekyllThemes offer diverse aesthetics:

• Cayman - Bold colors with sidebar navigation
• Hacker - Terminal-inspired dark theme
• Architect - Minimalist documentation style
• Merlot - Academic publication layouts

To switch themes, update the theme property in _config.yml and run bundle install to fetch the theme gem.

Custom CSS and Layouts

Beyond themes, custom CSS enables precise visual control. Add a styles.css file to your assets and reference it in layouts. For deeper customization, create layouts in _layouts using Liquid template tags:

<!DOCTYPE html>
<html>
<head>
 <title>{{ page.title }}</title>
 <link rel="stylesheet" href="{{ site.baseurl }}/assets/styles.css">
</head>
<body>
 <header>{{ content | toc }}</header>
 <main>{{ content }}</main>
</body>
</html>

Custom layouts let you create distinct designs for different content types--blog posts might use a different layout than static pages, enabling varied visual treatments while maintaining consistency through shared includes and styles.

For advanced customization needs, our web development specialists can help you create custom themes and layouts that align with your brand.

Deploying to GitHub Pages

GitHub Pages provides free hosting with native Jekyll support--push to GitHub and your site builds automatically.

Creating Your Repository

1. Sign in to GitHub and create a new repository named username.github.io (replace username with your actual GitHub username)
2. On the repository page, click the "Code" button and copy your repository URL
3. Initialize Git in your local Jekyll project and connect to GitHub

Deployment Commands

git init
git add .
git commit -m "Initial Jekyll site"
git remote add origin https://github.com/username/username.github.io.git
git push -u origin main

Publishing Sources

GitHub Pages supports multiple publishing approaches:

• User/Organization site: Repository named username.github.io, content built from main branch
• Project site: Any repository, built from gh-pages branch or /docs folder

After pushing, your site becomes accessible at https://username.github.io within minutes. The first build may take a few minutes as GitHub provisions resources.

To configure your publishing source, go to Repository Settings → Pages. Select your source branch and folder, then save. GitHub will trigger a build and notify you when the site is live.

For additional customization, GitHub Pages also supports custom domains. Add a CNAME file to your repository root with your domain name, then configure DNS records with your domain provider to point to GitHub's servers.

Once your site is deployed, implementing proper search engine optimization ensures your content reaches your target audience effectively.

Best Practices and Productive Workflows

Establishing good habits early prevents problems as your site grows.

Version Control Everything

Commit all changes to Git including posts, layouts, and configuration. Write meaningful commit messages describing what changed and why. Use branches for significant changes before merging. This practice enables collaboration and provides rollback capabilities when problems arise.

Content Workflow

Write in Markdown for maximum portability. Use consistent front matter across all content. Create draft posts by adding them to a _drafts folder (Jekyll automatically recognizes drafts and only publishes them when moved to _posts with a date).

Automation with Rake

Create a Rakefile to automate repetitive tasks:

require 'rake'
require 'bundler/setup'

desc "Create a new post"
task :new_post, :title do |t, args|
 title = args.title
 filename = "_posts/#{Time.now.strftime('%Y-%m-%d')}-#{title.downcase.gsub(' ', '-')}.md"
 File.open(filename, 'w') do |f|
 f.write("---\nlayout: post\ntitle: \"#{title}\"\ndate: #{Time.now}\n---\n\n")
 end
 puts "Created #{filename}"
end

desc "Build and serve the site"
task :serve do
 sh "bundle exec jekyll serve"
end

desc "Build for production"
task :build do
 sh "bundle exec jekyll build"
end

Site Maintenance

Review and update content regularly. Update Jekyll and theme gems periodically using bundle update. Monitor GitHub Pages build notifications for errors. Maintain a simple deployment checklist to ensure nothing is missed during updates.

Following these practices creates a sustainable publishing workflow that scales with your content needs and team size. For organizations seeking to scale their content operations, our content marketing team can help develop comprehensive content strategies.