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Simple, secure math captcha for django forms

Project description


Justin Quick <>


Django Math Captcha is an easy way to add mathematical captcha verification to your already existing forms. It asks you a simple math question (eg '1 + 2 =') and validates the form if your response is correct. All you have to do is subclass either MathCaptchaForm or MathCaptchaModelForm in your own forms.

Use it in your forms:

from math_captcha import MathCaptchaModelForm
from myapp.models import Blog

class MyExistingForm(MathCaptchaModelForm): # instead of forms.ModelForm
    #... extra fields here

    class Meta:
        model = Blog

Now you can be certain that the only users who create blogs are humans

Check out the example project for more practical use and tests.


Set the behavior of the math captcha interaction in your


A list of numbers to randomly choose from when generating the questions. Defaults to [1,2,3,4,5].


List of mathematical operators to use. Default is only add (+) and subtract (-). Available operators are: add (+), subtract (-), multiply (*), divide (/), and modulo (%)


Question that appears on forms as a label for math questions. By default it is 'Are you human?'

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