This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.



This is a similar plugin with WP-Cumulus ( but implemented with HTML5.

This plugin requires the modern browsers which support HTML5.


  1. Download the zip file and extract the contents.
  2. Upload the ‘cumulonimbus’ folder to your plugins directory (wp-content/plugins/).
  3. Activate the plugin through the ‘Plugins’ menu in WordPress
  4. Find a place for this widget in appearance->widgets.

Contributors & Developers

“Cumulonimbus” is open source software. The following people have contributed to this plugin.


Translate “Cumulonimbus” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Fix bug with chromium’s minimal font size.
  • Change to use HTML5 canvas transform/scale feature instead of adjusting font size.
  • Add font color setting.
  • Add background alpha value setting.
  • Add maximum font size setting.


  • The first version.