guojikai/captcha-image-creator
一个PHP写的中文验证码图片生成工具，仅生成验证码图片不进行缓存，需封装使用。
时间：2016-01-19 03:11
gladyshev/rucaptcha-client
Lightweight and useful 2captcha.com/rucaptcha.com PHP-client with PSRs support.
时间：2015-12-19 20:55
krowinski/one-click-captcha
Simple captcha that requires from user to only click a cut circle on image with several other circles. You can customize color of circles, background, width and height of image. Its very lightweight require no js just simple form in html and php gd extension.
时间：2015-12-07 01:20
eve-php/eve-plugin-captcha
Google Captcha Plugin for the Eve Framework
时间：2015-11-10 13:37
aldoanizio/makocaptcha
Captcha plugin for Mako Framework
时间：2015-11-10 12:14
elioair/chesscaptcha
A simple chess based captcha system.
时间：2015-10-27 18:06
jumper423/yii2-captcha
Распознавание капч для всех популярных сервисов rucaptcha.com, 2captcha.com, pixodrom.com, captcha24.com, socialink.ru, anti-captcha.com
时间：2015-10-13 19:27
au/entitymenu_dropdown
Turns an overcrowded entity menu into a neat dropdown
时间：2015-10-13 06:52
nikel303/yii_recaptcha2
Recaptcha v.2 widget and validator for Yii1
时间：2015-10-11 10:04
markthink/think-no-captcha
参照淘宝注册验证实现的No-CAPTCHA验证库，No-CAPTCHA是GOOGLE推出的一项验证码服务，国内有类似的实现比如极验。
时间：2015-10-07 05:19
miladrahimi/laracaptcha
Free Laravel captcha for neat and powerful projects!
时间：2015-09-24 17:16
iionly/captcha
Provides captcha support (Requires the php_gd library).
时间：2015-09-23 19:18
beck24/elgg_recaptcha
Provides recaptcha protection for forms
时间：2015-09-21 04:09
infinity-next/brennan-captcha
An anti-bot image captcha system written by Frederick Brennan and ported to Laravel for Infinity Next by Joshua Moon.
时间：2015-09-07 11:26