Jekyll Static Generator

Jekyll is a simple, blog-aware static site generator created by Tom Preston-Werner, co-founder of GitHub, in 2008, built in Ruby, designed to transform plain text files into static websites and blogs using Markdown for content, Liquid for templating, and YAML for configuration, serving as the engine behind GitHub Pages and powering millions of websites, adopted by Bootstrap, Facebook Design, and numerous open-source projects for their documentation and blog sites. The Liquid templating engine, originally created by Shopify, provides a safe, user-editable template language with tags for control flow including if, unless, for, and case, filters for transforming output including date formatting, string manipulation, array operations, and math functions, and objects exposing page and site variables including content, title, url, date, categories, tags, and custom frontmatter fields, enabling template authors to build complex layouts without executing arbitrary Ruby code. The content system uses Markdown processed by kramdown with support for tables, fenced code blocks, footnotes, definition lists, and attributes, with frontmatter providing per-page metadata, while the permalink system generates clean URLs from frontmatter variables, and the pagination, excerpts, drafts, and future posts features support complete blogging workflows. The plugin system extends Jekyll with generators, converters, hooks, tags, and filters, with over two hundred plugins for SEO, sitemaps, RSS feeds, redirects, analytics, search, and content processing. The GitHub Pages integration provides free hosting with automatic builds. The theme system through RubyGems. Designed by Tom Preston-Werner. Designed for bloggers and documentation.