Freeware Listing: Captcha
- Contact Form with Captcha - standalone download
- License: Freeware

Easy to use contact form form script with captcha image verification against spam..
- Publisher: adrianTNT
- Date: 03-09-2011
- Platform: PHP, Scripts
- Securimage PHP CAPTCHA
- License: Freeware

A highly customizable PHP CAPTCHA class for generating CAPTCHA images to prevent programs from filling out your forms. This does everything from create and output the image, to validate the code entered by the user in the form. Support for creating audible CAPTCHA codes in WAV format. It can show an image in just 3 lines of code, and validate the text in about 6 lines. This supports variable length codes, user defined character sets, custom TTF fonts, custom colors, multi-colored letters, skew lines through text, optional lines to obfuscate text, angled text, transparent text and more. Read codes from a dictionary file instead of using random strings.
- Publisher: Drew Phillips
- Date: 16-04-2011
- Platform: PHP, Scripts
- Invisible Captcha
- License: Freeware

Smart invisible captcha for wordpress comments. Visitors of your website don't need to enter letters and numbers. This small plugin automatically 100% protects your website from spam in comments. . installation : 1. Upload file invisible-captcha.zip to the /wp-content/plugins/ directory and decompress all files from archive. 2. Activate the plugin through the Plugins menu in WordPress. 3. Configure settings in WordPress menu Plugins --> Invisible Captcha 4. Relax and forget about spam in your blog. NB: The Identifier (id) of the button for comment sending in your comment-page should be "submit".
- Publisher: Andrey Sorvin
- Date: 16-06-2013
- Size: 10 KB
- Platform: Python, Scripts
- CAPTCHA Solver
- License: Shareware

CAPTCHA Solver is a lightweight and easy to use application that was designed to help you quickly clear up any captcha in no time. All you have to do is make a capture of that captcha, load it and then select the matching threshold that will be used to solve the captcha.
There is a bar on the lower part of CAPTCHA Solver that enables you to view how the progress of the whole process.
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- Publisher: tommykent1210
- Date:
- Platform: Win7 x64, Windows 7, WinOther, WinVista
- Internet Captcha
- License: Shareware

Internet Captcha is a handy and reliable application designed to produce captchas with the aim to protect HTML forms.
By inserting captchas in your webpages, you make sure that the forms are filled in by a human, and not an automated robot.
In addition, Internet Captcha features HTML5 compatibility and is compliant with all modern browsers.
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- Publisher: Daypo
- Date:
- Platform: Windows 7, Windows 8, WinOther, WinVista
- CAPTCHA-P!
- License: Shareware

CAPTCHA-P! is a handy application that allows you to quickly create CAPTCHA images with just a few clicks. The program allows you to select the file type and to configure the number of characters that will be used in each image.
You can fine tune the image generator in order to optimize the images by adjusting the level of noise and font format. The size of the image can also be modified in order to suit your webpage design.
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- Publisher: Kurt Muehlau
- Date:
- Platform: WinOther
- pixprofit software, pixprofit captcha v
- License: Freeware

the best pixprofit software,the genuine version of pix speeded-up tool.pix Speeded-up Tool is a software to increase the speed of captcha(pixprofit.com).Using it ,you can work with mutilple IDs at the same time.You can type in about 2000-3000 captcha per hour and earn 5$-10$ per day if you type fast enough..
- Publisher: www.5fc.info
- Date: 07-05-2011
- Size: 572 KB
- Platform: WinOther, WinVista
- ASP CAPTCHA with OWC
- License: Freeware

CAPTCHA for ASP - human checking VB Script code to prevent automated submission of forms. It contains random multiple patterns, backgrounds and fonts, gif, png and jpg hi-performance output. It also generates images from texts on the fly..
- Publisher: Antonin Foller
- Date: 09-11-2011
- Platform: Asp, Scripts
- Secure Contact Form Antispam with CAPTCHA
- License: Freeware

**** Invulnerable secure antispam contact form **** JavaScript field validator written in php (to insert multi-language variables and other variables, if you wish) ****Prevent spammers from using your form to send garbage, guaranteed.**** CAPTCHA to avoid Javascript validated Spam **** Easy to install and configure **** Valid XHTML 1.1- IMPORTANT NOTICE: to remove the link of the creator and/or to use the form commercially, the form is 30€ , more info under http://www.quinti.net/recursos.php?idioma=ennote: web and instructions is avaliable in 3 languages: Spanish, Galician, and English. Greetings!.
- Publisher: http://www.quinti.net - ...
- Date: 17-03-2011
- Platform: PHP, Scripts
- Image Form Valuator v
- License: Freeware

This script generates images for CAPTCHA ( Completely Automated Public Turing test to tell Computers from Humans Apart ) validation tests, make coded string and compare users input. This script was made as simple as only possible. It doesn't require any additional libraries or user session, it use only common PHP functions. This simplicity is helpful in case your hosting has lack of abilities..
- Publisher: Alex hom
- Date: 25-07-2011
- Platform: PHP, Scripts
- Captcha 2
- License: Freeware

It does not require images but works on text. Now you can protect your pages with the use of Captcha, you can now have some additional security/authetication/nospam to your web pages..
- Publisher: KB
- Date: 22-08-2011
- Platform: PHP, Scripts
- Captcha
- License: Freeware

The JetScripts Text-CAPTCHA stops spambots from filling out your signup pages and contact forms by baffling them with a devious, text-based interlock. This CAPTCHA form is designed to be easy for humans but difficult for spambots. Best of all, it doesn't require graphics libraries like GD or ImageMagick to work. Unlike most CAPTCHA systems, the JetScripts Text-CAPTCHA presents users with a short, simple word instead of oddly-distorted, difficult-to-read random letters. * No graphics libraries required, nothing to configure and no file permissions to set. * Easy-to-read for humans, devilishly tough to crack for spambots! * Over 5,000 different words by default, and more can be added (as many as you want).
- Publisher: KB
- Date: 03-07-2011
- Platform: PHP, Scripts
- Captcha ZDR
- License: Freeware

Captcha ZDR is a powerfull captcha tool for protecting your web FORMS from annoying spammers. The script is written in PHP."Captcha ZDR" offers several methods of captcha protection, string protection, calculation protection (sum and deduction), noise in image, string symbols with noise are hard for reading (nearly impossible) from spamer machines.This php script offers 8 unique backgrounds for the captcha images..
- Publisher: Zdravko
- Date: 20-07-2011
- Platform: PHP, Scripts
- CAPTCHA validation using PHP and Ajax
- License: Freeware

CAPTCHA has become a popular means of securing forms against automated submission, by requiring users to enter a string displayed in an automatically generated image. This implementation uses Ajax to conveniently combine CAPTCHA into normal pre-submission form verification. You'll need PHP to be installed with the GD image library (most PHP implementations will have this as standard)..
- Publisher: The Mouse Whisperer
- Date: 15-01-2011
- Platform: Misc Scripts
- 3D Captcha
- License: Freeware

A 3D Captcha implementation using Pov Ray and JSF.A user is presented with the challenge of identifying various objects.The image is generated out of a 3D model in which the different elements and element attributes are randomized..
- Publisher: threedcaptcha.sourceforge.net
- Date: 06-10-2012
- Size: 37040 KB
- Platform: WinOther
- CAPTCHA.NET
- License: Freeware

A powerful, provider-based .NET CAPTCHA control with audio challenge and Microsoft Visual Studio design-time support..
- Publisher: captchadotnet.sourceforge.net
- Date: 21-05-2012
- Size: 70 KB
- Platform: Linux, Mac OS X, WinOther
- Text CAPTCHA
- License: Freeware

Text CAPTCHA is lightweight library for generating text CAPTCHAs and using them. The CAPTCHA generation routine is built to be externally pluggable for replacement by advanced algorithms..
- Publisher: textcaptcha.sourceforge.net
- Date: 22-10-2012
- Size: 7 KB
- Platform: WinOther
- The ASP CAPTCHA Project
- License: Freeware

The ASP CAPTCHA Project (ASP Implementation of CAPTCHA) CAPTCHA is an acronym for "Completely Automated Public Turing Test to Tell Computers & Humans Apart". It can generate & grade tests that: * Most humans can pass * Current computer programs can't.
- Publisher: asp-captcha.sourceforge.net
- Date: 13-09-2012
- Size: 7 KB
- Platform: WinOther
- Ultra Light CAPTCHA in PHP
- License: Freeware

U L CAPTCHA is based on PHP to fight with spam. This is very easy to modify to suit your need. This package also contains some font-files downloaded from 1001FreeFonts website. Powered By Sourav Ghosh..
- Publisher: captcha.sourceforge.net
- Date: 05-08-2012
- Size: 95 KB
- Platform: WinOther
- FlexCaptcha
- License: Freeware

FlexCaptcha is the worlds most advanced freeware Captcha asp.net control. Most significantly FlexCaptcha support writing captcha images to either disk or directly to http stream bypassing disk writing all toghether. In addition the captcha can reload and have many custom settings. FlexCaptcha default works out of the box and can be embedded in other server controls. For advanced users, the fast direct http writing can be utilized. FlexCaptcha comes with full documentation and many examples..
- Publisher: Menulab
- Date: 20-12-2012
- Size: 17 KB
- Platform: Win7 x32, Win7 x64, Windows Server
Captcha: Freeware | All











