EE 1
EE 2
create_captcha_start

Allows rewrite of how CAPTCHAs are created

View this hook in the ExpressionEngine Developer Documentation »

Addons (9)

Accessible Captcha

This extension changes the default graphics captchas into accessible (and more secure) question and answer pairs.

Advanced Captcha

Slightly More Difficult to Crack CAPTCHA. Allows use of any True Type fonts you have available on the server.

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  • 432111 Vote
  • 1 Fave

Easy CAPTCHA Challenges

Alternative CAPTCHA for ExpressionEngine.

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  • 5 4 3 2 1 No Votes
  • 3 Favs

Invisible Captcha

Invisible Captcha asks a simple math question. If JS is enabled, the question will answer itself and be hidden from view.

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  • 432103 Votes
  • 4 Favs

JA reCAPTCHA

Changes default ExpressionEngine comment form captcha into reCAPTCHA plugin.

JOA Captivate

Captivate is an EE2 extension that replaces the built-in captcha with either the NuCaptcha or the ReCaptcha system. If multiple systems are activated, it will randomly choose between the systems. In order for it to work on your site, you will need a key from their respective developers.

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  • 5 4 3 2 1 No Votes
  • 2 Favs

kCaptcha

Just another graphic captcha (based on kCaptcha).

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  • 543211 Vote
  • 0 Favs

reCAPTCHA

reCAPTCHA is an extension that replaces the built-in captcha with the reCAPTCHA system on member registration and comment forms. If you don’t already have reCAPTCHA keys, you can sign up and get them here. Note that this is not an officially supported first-party plugin, though I’ll do my best to help.

solveCAPTCHA

solveCAPTCHA is an extension that replaces the built-in captcha with the solve media captcha system on member registration and comment forms. This captcha allows you to re-purpose your commenting and new member registration captchas for use as an advertisement.

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  • 5 4 3 2 1 No Votes
  • 1 Fave