Replace reCaptcha on registration form

Hi Everyone,

In the interest of not using anything that is not self-hosted and free software, I do not want to use reCpatcha on the registration form. Is it possible to include some other form of self-hosted captcha during the registration process so as to not use Google’s reCaptcha?

Thanks in advance,


Sure it is. This is called an authenticator. Check out the Server Developer Guide
and you‘ll see there two things: First, you implement your „own“ captcha (I guess that‘s what you want to do) by building a class, package and deploy it on the server. Second, you define the authentication flow, remove the unwanted captcha and add your new one. If your deployment of the first step was successful, you can find your authenticator in the admin ui where you configure the flows.

Thanks a lot @vju42. This is indeed what I was looking for. Next issue is, of course, learning java! Let me try this out…

Check out examples on (search for keycloak and find example directory)

See: Keycloak Quickstarts