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Debug toolbar for Plone

Introduction provides a wealth of debug information about a running Plone site at your fingertips. Simply install it in your build (e.g. by adding it to the eggs list in your Buildout and re-running buildout) and install it into your Plone site.

You should now see a Debug link at the top of your site. Click it to open the debug drawer. Click on a panel to view relevant information.

Panels include:

  • Context, showing information about the current content object
  • Interactive, providing an interactive Python prompt through which you can interact with the current context (only available to users with the Manage portal permission)
  • Request, showing information about the request that produced the current page
  • Response, showing informationa about the response that produced the current page
  • Published, showing information about the page template or view that was published
  • Theme, showing information about the current theme and browser layers
  • User, showing information about the current user
  • Workflow, showing information about workflow and security
  • Zope, showing information about how the Zope server is configured
  • Versions, listing the versions of every package known to the Zope process


The debug toolbar provides a lot of information about your Plone site that you may not want the world to know. It could also have a noticable performance impact, and for users with the Manage portal permission it provides access to an interactive interpreter where arbitrary Python statements can be executed, allowing a user to bypass Zope security.

In other words: Do not install this package on your production server.


Each panels is included as a viewlet. You can register new panels using a viewlet registration like this:


See for plenty of examples of panels.


Martin Aspeli, Author Giacomo Spettoli, i18n Leonardo Caballero, Spanish Translation, Uninstall GenericSetup profile


1.0 (2014-08-13)

  • Fix scrollHeight for the interactive prompt for jQuery 1.7+. Now, executing code jumps again to the latest prompt message. [thet]
  • Removed ‘xxx__roles__’ methods from Context / Methods viewlet and added roles + permission for each method when available. [glenfant]
  • Emphasize marker interfaces in context view [glenfant]
  • Provide same variables as in portal_actions in TAL tests [glenfant]
  • Fix themelayer. Use IBrowserSkinType instead of generic Interface which can return an real utility instead of an iface and broke the page rendering. Skin Layer must inherits from IBrowserSkinType [toutpt]

1.0a3 (2013-02-06)

  • completed i18n support and added it translation
  • add reload panel [vangheem]
  • added Spanish translation and Uninstall GenericSetup profile [macagua]
  • completed i18n support and added it translation [giacomos]
  • replace checkboxes with mark symbols in permission matrix [gaudenz]
  • permission matrix display improvements [gaudenz]

1.0a2 (13/11/2011)

  • Add interactive code debugging [optilude]
  • Add TALES tester [optilude]
  • Add details of context methods and attributes [optilude]

1.0a1 (13/11/2011)

  • Initial release [optilude]
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