Captcha Scripts

A Captcha is a challenge-response image or text field that is usually placed at the end of forms to ensure that submissions are not from bots. For more information, please refer to our php captcha scripts post.

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  • Captcha is a free to download and free to use script. You can use it to protect own pages against spammers. Uses ttf fonts which can be easily replaced.

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  • This PHP class will protect the spam, with refresh the captcha image functionality.

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  • Phoca CAPTCHA class is a small free class to show CAPTCHA image in your form. You can safe your form from Spam. You need PHP with GD library but you need not TTF support.

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  • dicap Basic is the next generation captcha solution for your web application. Two features make dicap a unique and valuable solution for you: 1. The captcha is easy readable for the users. 2. It is very hard to computer-read the captcha and transform

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  • This PHP script creates an image with a security code (known as "captcha") that can be used to protect e.g. your guestbook from spam. It requires PHP 4.1.0 or higher with session support and GD library.

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  • This is a useful script using CAPTCHA to make your PHP applications spam-proof. It takes seconds to install by simply including the Human Checker script on your page. It stops your pages being spammed by requiring users to enter a numeric code that

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  • TheCAPTCHA - a powerful PHP script to protect your site from spambots. Free and open-source. Easy to install. TheCAPTCHA is creating much more secure from break CAPTCHA images than any script of previous generation.

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  • The first script creates a static JPEG image with many features, easily and fully customizable. The second script is a math captcha. that creates an animated gif showing a sum, always partially visible (three kinds of animation). Spambots and OCR

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  • This is simple, complete and powerfull captcha tool written in PHP for protecting your web FORMS from spammers.Under GPL. A good solution for this is to use an random code that is generated by a script the code will be displayed as an image so only a

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  • With all the Captcha decoders these days, its impossible to build a solid Captcha image validator with a string. The solution? Have a captcha that asks simple math addition questions! Decoders are not very good at breaking these. This tutorial will

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  • Security code image generator and verifier. Requires GD support (most modern PHP installations) and mySQL. No image caching required. Configurable fonts, colors and captcha lengths.

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  • Normally, you see Match Captcha with HTML elements and calculating result. We now build captcha that shows the mathematical question as images. So that no programs can read the images equations. Please checkout the DEMO

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  • A CAPTCHA is a program that can generate and grade tests that humans can pass but current computer programs cannot. We need to add CAPTCHA validation on common form like contact us, enquiry Preventing Comment Spam in Blogs. Most bloggers are familiar

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  • jtCaptcha can stop 100% spam on your site. Also,not same as reCaptcha or others captcha system ,with jtCaptcha bot/people can't get 'Captcha Image' for break or use 'Captcha Solve' services .

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  • Ever get tired of the old troublesome words you need to type always? Well with zCaptcha you just simply click on the image that you think is best suited for. It may sound simple but in fact its a powerful anti-bot captcha with over 3000 possible

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  • Challenger is simple, easy to use and secure captcha verification handling script. It can serve images containing text and/or mathematical equation and/or UTF -8 encoded string and/or photo. It works with any PHP version and is cross-browser compatible.

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  • Captcha Creator is a powerful and complete PHP Captcha Script that generates Captcha Images. Easy to install on any web hosting account, it is very customizable and easy to configure. You can specify the size of the image, the color of text and

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  • Creative Captcha is a new method to validate if the client is a person or just a automated computer. Itâs like a submit button only with a safety check.

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  • This package contains 1 main class and 4 modules. Each module represent a âtypeâ of captcha verification.

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  • We all know that todays captchas generate string that most of times are hard to read from eye of human and this requires that the page must reload (refresh) to generate new captcha string, and after refreshing page you may lost some of information

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