PHP veya JavaScript kullanarak web sitenize kolayca entegre edebileceğiniz geniş bir CAPTCHA scriptleri ve uygulama koleksiyonu: Web sitelerinizdeki formlarda kullanabilceğiniz ücretsiz captcha uygulamarı. Aşağıdaki örneklerin hepsi ücretsizdir ve kolayca sitenize entegre edebilirsiniz. Bunun için Php ve Html bilginizin olması yeterlidir. 1. PHP CAPTCHA Library for reCAPTCHA http://recaptcha.net/plugins/php 2. Ajax Fancy Captcha – jQuery Plugin http://www.webdesignbeach.com/beachbar/ajax-fancy-captcha-jquery-plugin 3. Securimage (PHP) http://www.phpcaptcha.org 4. JCaptcha (Java) http://jcaptcha.sourceforge.net/ 5. The Captcha http://www.thecaptcha.com/ 6. 3D Captcha http://www-personal.umich.edu/~mressl/3dcaptcha/ 7. ASSIRA http://research.microsoft.com/en-us/um/redmond/projects/asirra/ 8. Captchas.net – Free CAPTCHA Service http://captchas.net/ 9. Visual and Audio PHP CAPTCHA Generation Class http://www.ejeliot.com/pages/php-captcha 10. freeCap PHP CAPTCHA http://www.puremango.co.uk/2005/04/php_captcha_script_113/ 11. Cool PHP CAPTCHA http://code.google.com/p/cool-php-captcha/ 12. Quick CAPTCHA 1.0 (PHP) http://www.web1marketing.com/resources/tools/quickcaptcha/ 13. Jcap (Javascript) http://www.archreality.com/jcap/ 14. Simple Javascript CAPTCHA http://sourcefirst.wordpress.com/2007/05/02/simple-javascript-captcha/ 15. CAPTCHA Service – Web Form Spam Protection http://webspamprotect.com/ 16. cryptograPHP http://www.captcha.fr/ 17. Free CAPTCHA Form-To-Email Script http://www.snaphost.com/captcha/ 18. hoomanTest: A Mootools Bot Filtering CAPTCHA Class http://fragged.org/dev/hOOmanTest_captcha_for_mootools.php 19. Simple PHP-GD CAPTCHA Image http://www.php-help.ro/php-tutorials/simple-php-gd-capcha-image/ 20. Simple AJAX CAPTCHA http://blog.smileylover.com/simple-ajax-captcha/
