What Is Jekyll VitePress Theme?

Jekyll is a static site generator written in Ruby. It turns Markdown, Liquid templates, and data files into static HTML you can deploy almost anywhere — no application server, no database, just files on a CDN.

Jekyll powers a huge number of documentation sites and blogs, particularly in the Ruby ecosystem and GitHub Pages workflows. If you’ve ever pushed a docs/ folder to GitHub and had a site appear, you’ve likely used Jekyll.

What this theme is

Jekyll VitePress Theme is a Jekyll theme and plugin gem that recreates the VitePress documentation experience — the same polished look and feel, entirely within Jekyll:

  • Top navigation with mobile nav screen, social links, and optional GitHub star count
  • Left sidebar driven by your Jekyll collections and data files
  • Right “On this page” outline that tracks your scroll position
  • Code blocks with copy buttons, language labels, and file-title bars with icons
  • Custom blocks for tips, warnings, and callouts that match VitePress containers
  • Home layout with hero section and feature cards
  • Doc footer with edit link, previous/next pager, and automatic last-updated timestamps
  • Built-in local search triggered with / or Ctrl/Cmd+K
  • Dark mode with an appearance toggle that respects system preference
  • Markdown enhancements — header anchors, external link icons, styled tables, and automatic title injection

Everything is configured through _config.yml and _data/*.yml files — no JavaScript build step, no Node.js toolchain.

Why this exists

VitePress has arguably the best documentation UX available today, but it depends on a Node.js + Vite toolchain. That’s a fine choice for JavaScript projects, but if you’re building something in Ruby, adding an entire Node.js pipeline just for docs feels like the wrong trade-off.

This theme brings VitePress’s visual and interaction model to Jekyll, so you can write your docs in Markdown, configure everything in YAML, and deploy with the tools you already know.