Transform your Jekyll app into Rack application!
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Transform your Jekyll app into a Rack application.

  • You can run it with rackup, shotgun, unicorn, and more.
  • You can run Rack-Jekyll with any modified Jekyll.
  • You can deploy Rack-Jekyll to Heroku, EC2, Rackspace, dedicated servers, VPS, etc.

How to use it

A file is required in order to run with shotgun and rackup. You can even deploy your Jekyll app to Heroku!

Copy this into in your Jekyll site's root directory:

require "rack/jekyll"


That's it.

Heroku provides a read-only filesystem, so you need to generate pages and git-commit them before you deploy your Jekyll site to Heroku.

  1. cd to your Jekyll directory
  2. add a file (see example above)
  3. build pages with jekyll build
  4. add gem "rack-jekyll" to your Gemfile
  5. git init && git add .
  6. git commit -m "Initial commit"
  7. heroku create
  8. git push heroku master


Jekyll configuration options can be specified in a _config.yml file or as Rack-Jekyll initialization options in


run => "mysite")

This will set a custom destination path, overriding the default (_site) and settings from a config file.

See Jekyll's configuration docs for more settings.

Additional Rack-Jekyll initialization options:

:config        - use given config file (default: "_config.yml")
:force_build   - whether to always generate the site at startup, even
                 when the destination path is not empty (default: false)
:auto          - whether to watch for changes and rebuild (default: false)
:wait_page     - a page to display while pages are rendering

Note that on read-only filesystems a site build will fail, so do not set :force_build => true in these cases.

404 page

In your site's root directory you can provide a custom 404.html file with YAML front matter.

Wait page

You can create a custom HTML page to display while Jekyll is rendering the site. Set the :wait_page initialization option to point to a file relative to the root of your Jekyll project.


run => "hold_on.html")

Note that this page should be self-contained (no links to external CSS or JS). It is also not a bad idea to add a <meta http-equiv="refresh" content="60"/> to the head section so that the page will periodically refresh itself and display the site once Jekyll has finished rendering.


Contributions are more than just welcome. Fork this repo and create a new branch, then submit a pull request.


  • adaoraul (Adão Raul)
  • Nerian (Gonzalo Rodríguez-Baltanás Díaz)
  • scottwater (Scott Watermasysk)
  • thedjinn (Emil Loer)
  • bry4n (Bryan Goines)
  • thibaudgg (Thibaud Guillaume-Gentil)
  • bemurphy (Brendon Murphy)
  • imajes (James Cox)
  • mattr- (Matt Rogers)
  • stomar (Marcus Stollsteimer)