Captcha Libraries

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Java web graphics verification code, support gif verification code.

<b>JCAPTCHA</b>, for <b>J</b>ava <b>C</b>ompletely <b>A</b>utomated <b>P</b>ublic <b>T</b>est to tell <b>C</b>omputers and <b>H</b>umans <b>A</b>part <br/>The open source java framework for captcha definition and integration <br/> A captcha is a simple captcha container that contains a question, a challenge, and a response validation routine.<BR/> A captcha can only be built by a captcha factory that provides methods to build localized captchas.<br/> This jar aims to provide interfaces and ...

JCaptcha All

ReCaptcha is a Java library for interfacing with ReCaptcha.nets Captcha service

API

GateIn SimpleCaptcha

This is the Bundle which use for Captcha in Multitenancy

Cage is a CAPTCHA image generator java library. It is fast, small and simple. Its goal is to generate images that are easy to read for a human but impossible or at least very hard for a computer.

Simple yet powerful CAPTCHA library written in Java

ReCaptcha is a Java library for interfacing with ReCaptcha.nets Captcha service