Plone Captchas

Plone Captchas (quintagroup.plonecaptchas) is a simple captchas implementation for Plone, designed for validation of human input in insecure forms.

Plone Captchas

quintagroup.plonecaptchas is a standalone implementation for validating human input on Plone forms which does not depend on services.


quintagroup.plonecaptchas adds captcha support to Plone, it works together with another Quintagroup package - quintagroup.captcha.core that is automatically installed together with quintagroup.plonecaptchas. With these two products installed captchas will be added to the following Plone forms: Send this (/sendto_form) form, Contact Us (/contact-info) form, Plone default discussion mechanism: Add Comment and Reply forms.

quintagroup.plonecaptchas does not automatically plug to Plone's default registration form (/join_form). You can make captcha plug to Plone's Join form via Zope Management Interface - for this follow instructions.

To make captchas work on forms created with PloneFormGen, please use quintagroup.pfg.captcha product.

Plone Captchas


See installation instructions for Plone 3, 4 buildout and traditional Zope 2 instance in the Plone Captchas Documentation section.

If Plone Captchas is expected to be used with Plone Comments product - for proper behaviour you have to install Plone Captchas first and then Plone Comments.


  • PIL with Jpeg and FreeType support
  • quintagroup.captcha.core

Supported Plone versions

  • Plone 4.0
  • Plone 3.x
  • Plone 2.x


  • Andriy Mylenkyi
  • Volodymyr Cherepanyak
  • Mykola Kharechko
  • Vitaliy Stepanov
  • Bohdan Koval



I've installed qPloneComments and qPloneCaptchas on one of my sites and they're great products, thanks.

Jun 1, 2010
David Siedband
Open Source Software Developer Partner, Zentraal, Inc.

Help us improve

With your help we will continue develop and improve this product in the future:

  1. Leave a testimonial for us to know that you like our product
  2. If you are interested in contributing to this product please submit this form and we will provide you with SVN access
  3. Order product customization or its implementation on your website