Skip to content


Subversion checkout URL

You can clone with
Download ZIP
yet another HTML5 Presentation Assembler
Ruby JavaScript
Branch: master
Failed to load latest commit information.
lib Indentation changed from 4 spaces to 2 (style.css)
slideshow Moved the ribbon image (demo slideshow) to the last page
watch Small changes to work with Ruby 1.8.7 too



Dependencies and supported browsers

Tested on Ruby 1.8.7 and 1.9.2. It works with the latest versions of Chrome, Safari and IE (9+). Firefox and Opera don't support the CSS zoom property, and consequently slides will not resize correctly.


First install the dependencies (it may take some minutes):

gem install watchr
gem install thin

Then execute the following command:


If you don't have execution permission, try:

ruby watch


The demo slideshow in the "slideshow" folder contains instructions to get you started. Everything inside the "slideshow" folder is related to a specific presentation. However, what's inside the "lib" folder and the "watch" script is generic and should not be modified.


For more information and additional options execute:

./watch --help

Do I need a web server to view my presentation?

Live.js and less.js currently won't work if you’re using Chrome and the path to your slideshow starts with "file://" due to a known Chrome issue.
If you're not using either of those, then you don't need a web server.

My presentation keeps flashing. What should I do?

You are probably using a tablet or you are offline and some of the contents you included in your presentation are not locally accessible.
This is caused by live.js. You should use the -n option to avoid it:

./watch --nolivejs

Want to control your HTML presentation with Apple Remote?

Check this project:
It's a MacRuby application to display your HTML slideshows fullscreen with Apple Remote Support.

I need more flexibility regarding transitions and animations

Check this project:
It's very flexible. However, slides don't scale in proportion and it works with a single html file (no partials).


slideshow.html is based on the HTML5 Slideshow project by Rob Flaherty. The code was extended and new features were added:

  • The ruby script which offers support for partials and automated build
  • Dimensions and proportional slide resizing according to a specified ratio (for example, 1280x800)
  • Additional options (for example, hide the toolbar but keep the slide number visible)
  • Live.js was added (browser automatic refresh)
  • Less.js was added

2011 David Francisco, released under the MIT license.

Something went wrong with that request. Please try again.