OSOLCaptcha

OSOLCaptcha

Free | Site Security | Sreekanth Dayanand
3
Score:
100
110 reviews
Captcha for joomla core and custom forms.Inserts captcha in registration,contact,reset password, remind username forms on enabling this plugin.To add captcha in custom forms without changing any existing codes or admin settings, follow the steps mentioned below. Just have to follow 3 steps for core forms. 1.install the plugin 2.publish the plugin . 3.Check the 5 forms(mentioned above). OSOLCaptcha Version 2 and above developed for joomla 2.5 and 3 uses regexp and AJAX verification .if the captcha doesnt appear in any of the core forms, you need to edit osolCaptcha/coreForms.php and update the regexp for the particular form based on the template you are using. ---Important step for Custom forms/Non core Joomla forms--- If you are familiar with regexp ,you could add OSOLCaptcha for any forms.For this you need to add a file in 'osolCaptcha/nonCoreForms' folder.you can check 'virtuemart.php' to see how to set regexp for any non core form. PS: Inorder to have this plugin insert captcha ,the form should have an id or name and a submit button inside 'form' tag.Though by default it usually will have,I am explicitly mentioning it because I have seen users developing custom forms and template overrides without name or id attribute and compalining that the captcha oesnt work there. It is recommended that this be done by coders or with their help though installing and publishing the plugin could be done by anyone(which in turn will add the captcha to the core forms mentioned above) Further there is a layer of backend spam protection with the help of botscout api which could prevent even human spams to an extend.We reccomend you to enable this as well. Currently there are 2 limitations for this plugin 1.If the html part is customized for comuser,modlogin or com_contact,it may not work.Since this is aimed for non techy joomla users it wont affect them as they dont edit any files.However if there is a template override with form id/name change and submit button tag change you should edit plugins/system/osolcaptcha/osolCaptcha/coreForms.php and change the 2 variables for that form properly 'formId' => 'tagToPlaceCaptchaBefore' => Enabling auto add for modlogin(not available from version 2.0 onwards) is subject to conditions and is disabled by default.if you enable it, make sure that it is in a unique position ,position must be any of these('left','right','top','user2','user3') .The position occupied by modlogin should not contain any other modules I have included a link to the download page of this plugin with the captcha image.You are free to remove it,though I will be happy to have that link with the captcha image :) This is my first extension to JED.Any suggestions and help on improving this plugin will be much appreciated PS:Please check the technical requirements section and FAQs section in the download page of the plugin,first if you are having any issues with the plugin AJAX verification
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JR Captcha

JR Captcha

Free | Site Security | JoomlaRoad
3
Score:
76
2 reviews
Captcha for Joomla core and custom forms.Inserts captcha in registration,contact,reset password, remind username forms on enabling this plugin.To add captcha in custom forms without changing any existing codes or admin settings, follow the steps mentioned below. Just have to follow 3 steps for core forms. 1.install the plugin 2.publish the plugin 3.choose JRCaptcha on global configuration Integration with All Joomla Forms.
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n3t Seznam Captcha

n3t Seznam Captcha

Free | Site Security | Pavel Poles
3
Score:
91
8 reviews
Simple text CAPTCHA with optional audio form, spelled in Czech language. Additional protection by checking online spam databases. This plugin wraps the seznam.cz Captcha API. Additional protection by checking online spam databases and blacklists could be activated in the configuration. Currently StopForumSpam, BotScout, SpamHaus, Sorbs, SpamCop and project HoneyPot are supported. There is also possibility to manually enter IP blacklist and/or whitelist.
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jGraphic Captcha Protection

jGraphic Captcha Protection

Free | Site Security | SafetyBis Ltd.
3
Score:
97
3 reviews
This plugin is good solution against spam on your website. jGraphic Captcha Protection is easy to setup and use. No extra hardware or complicated software to install. It protects your website against bots and spam software. Adds extra security for user registration page, lost password page. Possible to integrate into any Joomla template. jGraphic Captcha Protection is simple, but very powerful tool, what adds a higher level of security to your website. Main features: Easy to install, easy to use. Easy for human, complicated for robots. Prevents password brute force attack on login page. Prevents automatic new user registration on your website. Block spam software. Different levels of the security. Free support.
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KeyCAPTCHA

KeyCAPTCHA

Free | Site Security | Mersane, Ltd
3
Score:
100
125 reviews
KeyCAPTCHA - CAPTCHA with social features. You may support charity funds by using KeyCAPTCHA. Unlike many other captchas, it does not require any text typing. Free Variants of Using KeyCAPTCHA: 1. Anti-spam protection. Social advertising. Monetization through commercial ads. 2. Anti-spam protection. Monetization through commercial ads. 3. Anti-spam protection. Social advertising. 4. Anti-spam protection without any ads. Social features: You may support charity funds by enabling social advertising in KeyCAPTCHA. Also you can earn money by specifying social and commercial advertising shares in KeyCAPTCHA on your website. Integration with Joomla extensions: * Standard Joomla Registration, Contact Us, Reset Password and Remind Username forms * JComments * VirtueMart forms: Registration, Checkout, Ask Question !!! * JoomShopping * Community Builder (CB comprofiler) Registration and Forgot login forms * JomSocial registration form * AlphaRegistration * K2 Registration form * DFContact * ALFcontact * Phoca Guestbook * Easybook Reloaded * K2 Comments * yvComment * JXtened comments * FlexiContact * JoomlaDonation * Compatible with RocketTheme templates * ChronoForms (up to 3.x) * AdsManager * QContacts * Job Board * Mosets Tree (review form) * HikaShop * JWHMCS Integrator * JoomGallery KeyCAPTCHA Unique Technologies: * Instead of guessing symbols, our CAPTCHA offers visitors to complete an easy interactive task. * If KeyCAPTCHA hasn't been solved correctly, page refreshing doesn't take place that allows the user not to fill in the form repeatedly. It occurs since there is an initial checkup of CAPTCHAs in the KeyCAPTCHA servers before sending a filled-in form to the protected web server. * Our CAPTCHA also can be used even if your hosting provider blocks all outgoing connections. Installation: 1. Register on and log-in to our site https://www.keycaptcha.com 2. Add your site URL to a Site list. 3. Follow the CAPTCHA installation instructions in our Wizard. Upgrade: To upgrade KeyCAPTCHA plugin you have to uninstall the previous version.
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EasyCAPTCHA_efence

EasyCAPTCHA_efence

Free | Site Security | Brij Mohan
3
Score:
76
2 reviews
efence can do the following for you: 1. Protection against spam and malicious bots that can harm your web resources: efence is an alternative to CAPTCHA which protects your website against spam and makes it fun for the user to solve challenges. It presents an interactive picture based challenge for the users giving them a break from typing those boring twisted characters. It brings in the fun factor while avoiding the serious spam. Moreover it's an ideal spam protection tool for handheld devices. Just ask your users about what they like doing on their mobile or tablet, typing those twisted characters or just touch, tap and slide. The answer would be exactly what efence offers. 2. Guaranteed user engagement with your valued digital advertising and marketing materials: In case of a traditional CAPTCHA, when the user fights with those ugly looking twisted monsters, all that precious time and attention gets wasted with no benefit at all. efence empowers you to capitalize on this precious time and effort. What do you get ? dedicated eyeballs, guaranteed user engagement. This is done by providing great control and flexibility in creating your own branding images for guaranteed engagement. To place your branding images for free, please contact us at support@engageclick.com This is an official efence plugin which lets you embed efence at the most critical places on your website without editing any files. It takes only a few minutes to install and configure the plugin, in order to unleash the immense power of efence. Significant features   - Receive guaranteed attention to your in-house or external digital marketing contents   - Spam protection by an innovative "Captcha" alternative   - Places a customizable spam protection mechanism on your site - customize colors, shape, size and other attributes.   - Audio aid for visually impaired   - Category based customizable challenge options.   - Customer engagement using your own branding images.   - Powerful analytics to understand customer behavior.   - Works in all the browsers (including IE6!).   - Secure channel option for information security.   - Non-blocking, high-performance code. Sign up for efence - http://efence.engageclick.com Take an online demo to get an idea of how efence works as a powerful Captcha alternative ensuring customer engagement. Go Premium If you have custom requirements and need support package, we have an dedicated awesome team that delivers quality customization and support Visit official plugin homepage at http://efence.engageclick.com/selfservice-2/plugin/joomla.
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CedSecurityImages

CedSecurityImages

Free | Site Security | Galaxiis
3
Score:
0
69 reviews
Ever been to a site where you had to register and the registration form required that you type in the same phrase that is found in a hard-to-read image? Joomla! has now this possibility thanks to my extension CedSecurityimages. It will protect You against most spammers attempt! Features Support best online captcha services: Recapctha, KeyCaptcha and NuCaptcha Protect all JForm Field of all Joomla! extensions without ANY patches to Joomla! core or extensions Good and configurable captcha Why using CedSecurityImages? CedSecurityImages protect all Form in joomla without any hacks or Joomla core changes. CedSecurityImages produce CAPTCHA (an acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart") is a type of challenge-response test used in computing to determine whether or not the user is human. CAPTCHAs are used to prevent bots from using various types of computing services or collecting certain types of sensitive information. Applications include preventing bots from taking part in online polls, registering for free email accounts (which may then be used to send spam) and collecting email addresses. You're part of our marketing team! At Galaxiis.com we receive feedback from our customers and consistently turn their comments and suggestions into new and improved features. Satisfaction Guarantee If you are not totally satisfied with our product or installation, we will promptly resolve any issues. In the event you are still not completely satisfied, we will refund your money.
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HashCash

HashCash

Free | Site Security | Michael Richey
3
Score:
33
1 review
Finally, a captcha you can't read...wait...that's not what I meant... This is the captcha you don't even need to see. Everyone knows the annoyance caused by captchas that are unreadable. HashCash is a different kind of validation. Unlike other captcha solutions, HashCash doesn't rely on 3rd party services or resources - and it doesn't require anything from your users other than a JavaScript enabled browser. No mangled words to decipher, no math problems to solve, no photos to match - nothing but arrival on a form page. Originally proposed by Adam Beck in 1997, HashCash requires a form to include the solution to a complex calculation. The calculation is so complex (it takes hundreds or even thousands of attempts to solve it) that any human or bot attempting to abuse your forms will spend so much processor time solving the calculation that it wouldn't be profitable to continue attacking your forms! The server receives the result and can easily and quickly test it in 1 calculation - either it's right and your user continues or it's wrong and the form submission fails. The best part is, HashCash is invisible (you can't read it - or even see it) and it happens in the background without user interaction! Your users arrive at the form and the HashCash calculation is automatically executed. Any bot attempting to submit your form without completing the calculation is rejected, and the calculation changes every time the form is submitted. Configuration is simple. Open the plugin and choose the difficulty level. The predefined minimum (1) and maximum (4) levels prevent calculations that are too simple or too difficult to complete in an acceptable amount of time.
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GW Spam Protect

GW Spam Protect

Free | Site Security | GreenWood Studio
3
Score:
0
0 reviews
GW Spam Protect - free plugin that will protect your websites on Joomla and VirtuaMart from automatic registrations. Standard built-in Joomla ReCaptcha from Google, which does not meet modern standards of usability. Anyone will tell you that he does not like entering captcha code, not to mention the fact that for a long time, there are many services that are able to recognize and enter it automatically. But to win the automatic registration is easier than you think. How it works: * The plugin automatically adds a checkbox (checkmark) in the registration forms Joomla and VirtueMart. * Checkbox starts loading only after full page load with a delay of a few seconds , so that robots do not see the checkbox and not be able to put a check mark in it. Features: * Compatible with Joomla 2.5 and Joomla 3; * Conversion growth compared with other types of anti-spam; * Convenience for users; * Translated into three languages: Russian, Ukrainian, English; * Plugin connection requires jQuery, if your site is no jQuery, the plugin will automatically load the it; * Easy to use - just install and publish the plugin; * FREE.
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FunCaptcha

FunCaptcha

Free | Access & Security | FunCaptcha
3
Score:
0
0 reviews
FunCaptcha is a fun, fast and refreshing replacement to the confronting and confusing CAPTCHAs we encounter every day. Through our graphically rich and engaging mini-game based approach, FunCaptcha is completed by over 20% more users than traditional CAPTCHAS while ensuring no bots get through. FunCaptcha can be applied to your Joomla site with this simple plug-in and for those looking for a larger scale package – simply contact us to get a tailored brand suite made for you.
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